this is bbc news, the headlines: president putin has ordered the russian secret service to tighten security on the kerch bridge, hours after an explosion ripped through the only road link between mainland russia and the occupied crimean peninsula. mr putin also ordered a full investigation into the incident stopper ukrainian officials have welcomed the explosion. there has been reports of at least three more deaths on another day of mass protests against the iranian authorities that have erupted after the death in custody of a young woman. videos have emerged showing female students shouting go back when president ebrahim racey visited a women's

university. five teenagers in hong kong have been found guilty of advocating a violent revolution against the chinese state and sentenced up to three years in detention. with the rising cost of living many people are facing a cold winter but there is hope for some. a community organisation in burnley is providing emergency plumbing and heating repairs to vulnerable people for a low—cost or no cost at all. james anderson set up the service to help elderly and disabled people stay warm. judy hobson went to meetjames and find out more about the work he does. this is the third property that james anderson has visited today. it is the home of a vulnerable lady who can't keep warm. his fixed the problem and the lady's daughter wants to

know the cost.— the lady's daughter wants to know the cost. how much do we owe you? _ know the cost. how much do we owe you? james _ know the cost. how much do we owe you? james isn't _ know the cost. how much do we owe you? james isn't going - know the cost. how much do we owe you? james isn't going to i owe you? james isn't going to charue owe you? james isn't going to charge her- — owe you? james isn't going to charge her. she's— owe you? james isn't going to charge her. she's got - owe you? james isn't going to charge her. she's got a - charge her. she's got a respiratory _ charge her. she's got a respiratory disease - charge her. she's got ai respiratory disease and charge her. she's got a - respiratory disease and she is in a very vulnerable position and she's got no heating and hot water because the back boiler had gone off. it's not about money with them people, it's about doing for them what they need to be done. so what's wrong, the light has gone off on your boiler? in wrong, the light has gone off on your boiler?— on your boiler? in the office the business _ on your boiler? in the office the business takes - on your boiler? in the office the business takes dozens l on your boiler? in the office| the business takes dozens of calls from people who can't heat their homes. james is also driven by the need to protect vulnerable residents from being overcharged and from shoddy workmanship.— overcharged and from shoddy workmanshi. ., ., ., ., workmanship. you got no heating or hot water. _ workmanship. you got no heating or hot water, you _ workmanship. you got no heating or hot water, you are _ workmanship. you got no heating or hot water, you are over - workmanship. you got no heating or hot water, you are over 65, - or hot water, you are over 65, registered as disabled, you're in a situation where you are facing poverty or could be looking at going into severe poverty, then we will put a plan applies to either get you a free boiler or a boiler that is discounted massively, also fuel, gas and electric.-

fuel, gas and electric. james set u- fuel, gas and electric. james set up his — fuel, gas and electric. james set up his business - fuel, gas and electric. james set up his business in - fuel, gas and electric. james set up his business in 2017 i fuel, gas and electric. james l set up his business in 2017 and relies on fundraising and donations. one of his biggest supporters is the actor hugh grant. business is now so big he enlisted the support of contractors all over the country. if contractors all over the country-— contractors all over the count . , , country. if you need plumbing and heating — country. if you need plumbing and heating or _ country. if you need plumbing and heating or a _ country. if you need plumbing and heating or a boiler - country. if you need plumbing and heating or a boiler and i country. if you need plumbing| and heating or a boiler and we can't get you because you are in a different part of the country, we will authorise another company to do that work for us and we will pay the bill for us and we will pay the bill for that. �* ., , for that. i'm doing everything the can for that. i'm doing everything they can at — for that. i'm doing everything they can at the _ for that. i'm doing everything they can at the minute - for that. i'm doing everything they can at the minute to - for that. i'm doing everything they can at the minute to not| they can at the minute to not spend — they can at the minute to not spend as _ they can at the minute to not spend as much.— they can at the minute to not spend as much. we've removed that stigma. — spend as much. we've removed that stigma, that _ spend as much. we've removed that stigma, that thought - spend as much. we've removed that stigma, that thought that l that stigma, that thought that people have that nobody will help. we replace that by giving them the help.— them the help. james doesn't like to use — them the help. james doesn't like to use the _ them the help. james doesn't like to use the word _ them the help. james doesn't like to use the word charity i like to use the word charity because he thinks it is demeaning to the people he helped. instead he simply says this is a vital service. no—one should have to choose between eating and heating.

it's 33 minutes past one o'clock. now on bbc news, the travel show. yeah, all checked, triple checked. metal clanking. radio: team, - are you a go or no go? inaudible says go. radio: inaudible team go for launch. go or no go for launch? bridge is go for launch. metal clanking. there will be a time when people will go to space at much less cost and very regularly. i think the same things gonna happen going underwater. it's going to get less expensive and much more accessible. radio: all the inaudible go for launch. _ this is the point of no return.

if there was any point to freak out, now would be the point to freak out. this is an experimental sub. people are informed that it's very dangerous down there. am i spinning? yes. oh, my god. and scott is like, "oh no, we have a problem." i was thinking, we're not gonna make it! we can't go anywhere but go in circles. ijust need to get there. radio: inaudible can you hear? do we have communications? inaudible so this is a menu from the titanic itself - on the day that it actually - sank, and i very strangely came across it in a very small auction in ireland.

radio: go ahead. yes, sir. secure the anchor. phone rings. hello? so i've heard the comparison, at titanic depth it would like having an aircraft carrier sitting on the sub. it gives you an idea of how much pressure there really is. that's my mexican flag. this is the white star line . pin, a titanic expedition pin. radio: go ahead. yes, sir. radio: roger that, go ahead. the ship was made in norway, so most of the medications are norwegian, but there are also non—us medications, so it's like going to an ikea in france, everything is in metric and in french, and it's completely confusing because it's ikea to start with.

i have a titanic patch from the expedition. this is just the titanic, the jacket patch. laughs. yes. people are so enthralled with titanic that it became a must—do dive. i read an article that said there are three words in the english language that are known throughout the planet and that's �*coca—cola', �*god', and �*titanic�*. it's just such an interesting period of time that i got really interested in the both the ship's history and the dreams of the ship, but also the people's history and their dreams, as well. the titanic has always been in my family, . in terms of history. my father's from northern ireland, he's was born - in derry, spent a lot of time in belfast. l and growing up as a child, he always spoke about - the titanic because obviously

it was built in belfast. - we've always had what we call in irish a gra, which is a love l for the whole history- and the story of the titanic, so i'm really- pleased to be here. i've been keeping myself very fit and watching my diet. - i had covid a few years ago. in the meantime, i had a little| operation and everything else, and still got myself ready and prepared for this - because it means a lot to me. when i was a kid, nobody had found it, nobody knew where it was, so i decided that i was going to go find it, so i needed to study science and oceanography. my first week of college, they found it. somebody beat me to it. it was september 1st, 1985. there was a picture of a boiler in black and white on television, and the dream...just crumbled. i switched my career to banking. and i started searching for a way to go. i wasn't sure how i was going

to get to titanic but i knew i had to go. i'm nota millionaire, i've been saving money for a long, long time. i made a lot of sacrifices in my life to be able to go to titanic. i don't have a car, i didn't get married yet, i don't have children, and all of those decisions have been because i wanted to go to titanic. when i met stockton i told him, "here's my money." he said, "wait a minute! "we haven't even built the sub." applause. just quick orientation for the sub. this is a forward dome which opens and closes. we have the pressure hole in the centre, that's 5—inch thick carbon fibre. vertical and horizontal thrusters you can see there.

i like to tell people, "this is not your grandfather's submarine." it's got one button, and that's it. so, yeah, so we run the sub with this game controller. it's made by logitech but it's basically a sony playstation—style controller. if you want to go forward, you press forward. if you want to go back, you press back. if you want to turn to the left, it's like that. you want to turn to the right, you turn to the right. test at 12 volts. go ahead. i started off with a partly finished homebuild sub that i'd built myself. then i formed the business and acquired a sub that we modified heavily and sort of figured out what we wanted. then we made the first level prototype of this which was cyclops i, that was very similar but was a steel hull that already existed, but it had some of the similar electronics. and then this was the ultimate version that we always wanted. sojust another

additional backup. it's a miracle that it can do| what it does when you look at it there, becausej when you look at it, it is very small. it looks like it's been put - together with pieces of string. but it's not, obviously. but it's— it's exciting. in general, the biology theme is one of documenting biodiversity — that hasn't been done well on this wreck. there's sort of a race to understand the deep sea which is largest environment in the oceans, and the most poorly explored. here, we're trying to give that experience, check of your box to see the titanic but, at the same time, contribute to something that has a wider application. so this is pretty typical of what we saw on the dive, you can see this black igneous rock, but look at the number of sponges, and that's

what really hit us right away. i was asked by oceangate to be that chief scientist of their expeditions. that involves organising a science team and establishing long—term monitoring stations on the wreck. the earth is changing, the climate's changing. the deep sea drives the earth's climate, most of the oxygen that's produced is from marine plankton, so changes in the ocean have a huge impact over the whole globe. the team always says, you know, there's no guarantee you're gonna see the bow, there's no guarantee you're gonna get down there because there are so many variables, you know. some are man—made, some are nature, sometimes it's both put together. i was able to join their expedition last year. we took the dive and dove for about two hours and maybe 15 minutes or so. i heard we got within like two football fields of the titanic,

and then suddenly stockton says, "oh, we got to turn around." and at first i thought he was joking because we were over two hours into our expedition and so close to the bottom. but then he explained one of the batteries kind of went kaput and we were having trouble using the electronic drops for the weights, so it would be hard for us to get back up to the surface. the stakes were quite high at that point. i was really intrigued with, like, ok, so we can't get to the site tonight, what are our options? we had discussed actually staying, just sleeping at the bottom of the ocean in the submersible. we have special weights on the submersible that will dissolve after 2a hours, so they would just drop off and then we would be able to get up to the surface. that's one option. we're down here for another 16 to 2a hours. we will drift down, we will hit the bottom. we will have communications, we can talk to them. i'm fine with staying here.

it's your call, stockton. it's only if...renata and jaden, mostly. yeah, well. yeah, i'm fine with staying down here. i was all about sleeping in the submersible overnight. i think me and someone else were, but then the other half of the crew were not as happy about that. are you still pumping? yeah. what do you have, pressure wise? 58. somehow stocktown managed to hydraulic pump it manually so gently that it was able to slowly release the weights. yeah, very good. we've retained our—. wait a second. we are starting to come up. we are? yeah. 0k. we're definitely coming up. i think you did it, - stockton, you 98% did it. hey, there's some luck here! high five! high five on my count, yes, here we go. ok, maybe a win—win. maybe. yeah, or maybe they want... this is why you want your pilot to be an engineer. l it's an open book here, if you have any questions about what's going on, about acoustic monitoring, about carbon fibre, problems we had, rumours of problems we had, actual problems we had, you know, feel free to ask me,

we're happy to show everything. we want everyone going into this fully informed. this is an experimental sub, this is dangerous environment, it's 6000 psi. very few people have been down there, and so we want to make sure that you're going in with an open eye and understand what's going on. if you don't want to do it at any time, feel free to say, "hey, i want to take a pass," and we can work something out. you know, maybe bring you another year or something else. but i really want to make sure that you're aware of all this. on a mission four, when we got to the surface — scott was piloting — we hear a really loud bang, not a soothing sound. no. but on the surface, as the inaudible will attest, almost every deep diving sub makes a noise at some point.

i don't know. i don't have expectations of how i'm going to feel. i know when i think about it, i cry, so there will probably be a lot of crying when i'm down there. um, but i don't know, we'll see. every night before a dive, everyone gets together and draws on some of these styrofoam cups. they attach them to the submersible before they do the dive and go down. and when they go underwater, they are under lots of pressure and they compress. and when they come up we have all these little, tiny mini cups. so i think everyone does a bunch and brings them back to their friends and family as a little souvenir.

so, my alarm just went off. it's about 3:30 in the morning. we're supposed to be on the back deck by 4am to start the process of loading up and everything. so, it's not very often i wake up this early but it seems worth it for today. i was pretty grumpy waking up at 3:30, but when i think about the passengers who might�*ve also have woken up really early to catch their horse and carriage, or whatever, to take them to the dock, it made me feel like a kinship with them and also kind of grounded me in what i was doing.

the dome is open and i step up into the sub, um. you know, i get chatting with the fellow passengers, which is probably what the titanic passengers did, as they all kind of boarded at the same time. alright, happy day. i know i'm going to be seasick, so i sort of commandeered the front of it so that i can get to the port hole, and then the dome slowly, slowly closes in front of me, and i have this moment of, like — this is the point of no return. i am not claustrophobic by any means but i'm like, well, if there was any point to freak out, now would be the point to freak out. and i sort of did a — i do a gut check with myself, and i say, "nope, not freaking out." i'm actually excited. the — the — i think the nerves in the stomach was not out

of anxiety, it was of excitement. we are overall comfortable, here in the sub. we've got the scrubber on, oxygen is flowing. and we are standing by for vacuum. in the last 35 years, i did 37 dives to the titanic. each expedition, you can see more and more. here, for example, the deck of the ship collapsed on each other and step by step they disappeared, and we can see through the deck. of course, the deterioration is bad,

but at the same time, the wreck is like a sanctuary for the marine life. we're just in limbo now. just at the beginning of the roller—coaster. no turning back now. it is always interesting to get on the outside of the sub. you spend most of the time on the inside the sub, —— you spend most of the time diving on the inside the sub, so it is a different tempo out here, different things happening. if we have a contaminated atmosphere here, we've got some smoke hoods. those are located directly belowjaden, and we'll get those out and put them on as needed if we have a contaminated atmosphere. if you smell anything in the sub, weird, let me know immediately. no two launches or recoveries are the same. there is always something different. and that's the problem — there's so much that can go wrong. it feels just like a ride at disneyland.

this is part of the experience. blake is a super—solid diver. i don't worry about him one bit. and communication — he'll get you all communicating. should i worry about you? i haven't had another bad recovery. i worry about him when he is not in the water. i worry about him when he's breathing surface air. i'm sure — not only i but the other people with me — will have mixed emotions when we go down. you're bound to have mixed emotions. i'd say quite strongly so. it is in irish folklore,

for want of a better word. you know, it was built in ireland, it was the biggest ship in the world, it was incredible and it was its maiden voyage. i mean, it perished on its maiden voyage, effectively. you know, so it's — it's, yeah, very poignant. you've got to think of those people. there were a lot of people — irish, english, from all over the world — and, you know, it's sad, there's no doubt that it's tinged with sadness. all stations are reporting the dive is a go. please, stand by. soft music plays.

the sub is in the water.

i — to be honest, i'm so... ijust need to get there. even if it's just the debris field, i'll be very happy with just paying my respects in the debris field.

for about 2.5 hours, we see nothing but darkness, and then all of a sudden, you see the earth come up to you and it does feel like it is coming up to you, because you're descending so quickly. seeing the natural bottom of the ocean come up at you was sort of spectacular. we saw plates. a plate just came out — a big dinner plate, just sitting there on its own. then we saw a wash hand basin with the taps still attached. and we were only about 300 metres from the wreck. is something going on with my thrusters? um, i'm thrusting and

nothing is happening. i don't know what's going on. one is thrusting forward, one of the thrusters is thrusting backwards right now. so, the only thing i can do right now is a 360. we're literally 300 metres from titanic and although we are in the debris field, we can't go anywhere but go in circles. oh, my god... after what's been a wet week for some, saturday was a lot quieter. 18 celsius in the south, nearly ten hours of sunshine and only around nine millimetres of rain and the reason was this area of high pressure ruling the roost. but these weather fronts are now starting to nudge that

high pressure system out the way, so for the day ahead, increasing amounts of cloud, wind and rain. but ahead of it, we've still got starry skies and through the night, temperatures have been tumbling away — within two or three degrees of freezing in some rural areas by morning, notably of england and wales — so a touch of grass frost, a little bit of mist and some fog around where we've got the light winds but the winds far from light further north and west — gales or severe gale—force winds are forecast for the day ahead — that's gusts of 60 or 70 miles an hourfor parts of the western isles, the northern isles, too. starting to throw in this really quite heavy rain, several hours of it, across scotland and northern ireland. with it, some squally winds and hill fog, eventually pushing into north—western parts of england and wales. ahead of that, we've got the early morning mist and fog to clear but we should hold onto hazy sunshine across central and eastern areas. 17 or 18 and feeling quite pleasant but clearly, with the cloud, the wind and the rain elsewhere, temperatures will be held nearer 13 or ia. now, the progress of that weather front will continue

through the evening and overnight, becoming stuck across southern and eastern areas, but it will be milder through the coming night so, as we go towards monday morning's rush, we may well have a band of wet and relatively breezy weather to contend with in southern and eastern areas. it'll be pretty miserable during the day ahead with that rain. then, showers follow on that north—westerly breeze, so temperatures taken down a degree or two but some good spells of sunshine and just the odd shower coming through on that brisk wind which will start to ease away. it will initially be really quite windy across even the north on monday morning and then that eases away and we've got temperatures falling low once again with a touch of frost potentially in a few spots as we head towards dawn, so that'll be more widespread. but then later in the day, we'll start to pick up more cloud and then by wednesday, the next weather front arrives to bring rain, particularly across the northern and western half of the uk — that's this weather system here. but it's all eyes out to the atlantic for later in the week when it looks as if we could have a very deep area of low pressure moving

in with a lot of wind and rain associated with it. we'll keep you posted.

welcome to bbc news. our top stories: president putin orders an investigation into the explosion that severely damaged russia's only bridge to the occupied crimean peninsula. more protesters take to the streets of iran as demonstrations against the country's hard—line islamic country's ha rd—line islamic rulers country's hard—line islamic rulers enter their fourth week. five teenagers have beenjailed in hong kong after being found guilty of plotting a violent revolution against communist party rule. funerals are held for the victims of a knife and gun attack on a nursery school in northern thailand. and from seed to space, how china is

pioneering a new way