september 20 six, 43 male students from teaching college visited the city of iguala in mexico and went missing. haw visited the city of iguala in mexico and went missing. how do ou mexico and went missing. how do you disappear— mexico and went missing. how do you disappear 43 _ mexico and went missing. how do you disappear 43 people? - mexico and went missing. how do you disappear 43 people? it - you disappear 43 people? it helps — you disappear 43 people? it helps if— you disappear 43 people? it helps if the government path with— helps if the government path with investigating that disappearance is involved in carrying _ disappearance is involved in carrying out the disappearance. 43 were abducted, according to the attorney general's office, i by members of the municipal

police in iguala. _ they were members of the drug cartels. i we had worked on a number of cases in mexico where forensic evidence had been tampered with and you're constantly asking yourself, what part of the evidence can you trust? the mexican government was officially stating that the guerreros unidos were simply a local gang and we knew that not to be the truth at all. chanting the case has sparked huge demonstrations in a country where 98% of murders last year went

says prayer in spanish. this is the mass where the students were attacked. we couldn't understand what really was happening. with the missing students of iguala. it was like another story about violence. my another story about violence. my name isjose and i'm a journalist and i do photography, i do video. as a mexicanjournalist, we learn photography, i do video. as a mexican journalist, we learn a lot from investigations. we learn how they move and manipulate, how corruption has

become a normality for us. we are very suspicious about everything that the government says. the morning was interesting because now, we have a lot of soldiers, a lot of marines patrolling the area. when we arrived at the cook all the dam, they closed the road. they did not allow us to cross this point —— cocula. they tell us get out of here, you don't have anything to do here. i said no, you cannot kick me out. i'm a journalist. said no, you cannot kick me out. i'm ajournalist. have said no, you cannot kick me out. i'm a journalist. have a right to be here. started organising a convoy with the marines. it looks weird. the whole thing. so, i start to make camera from the long distance. i start to follow

them. and they came into the reserve for and they start to look for something. my journalist instinct tells me stay here, don't move. because something is going to happen here. fist something is going to happen here. �* something is going to happen here. ~ ., ., , here. at the same time, hamas is a ron flies — here. at the same time, hamas is a ron flies from _ here. at the same time, hamas is a ron flies from mexico - here. at the same time, hamas is a ron flies from mexico city l is a ron flies from mexico city to cocuia _ is a ron flies from mexico city to cocula with one of the detainees who confessed to the killings— detainees who confessed to the killings -- — detainees who confessed to the killings —— thomas thereon. —— tomas zeron.

the search at the river on the 28th of october would become a contested part of the government's investigation.

this is the afternoon of that day, the 28th. this is like one, two hours after tomas zeron has left the scene. this is the forensic team. they are making an inspection on a riverbank, picking up small things and putting them in forensic bags for evidence. at that point, forensic argentina group arrive and i thought the guys with the white suits were working with the argentinians. later, i knew

that the argentinians didn't have any idea what had happened, just a couple of metres below them. and it was obvious they were having an argument. irate obvious they were having an argument-— obvious they were having an aruument. ~ ., ., argument. we came down from the uuard argument. we came down from the guard jump — argument. we came down from the guard jump little — argument. we came down from the guard jump little bit _ argument. we came down from the guard jump little bit earlier- guard jump little bit earlier and — guard jump little bit earlier and we _ guard jump little bit earlier and we were stopped at the road in gulkula — and we were stopped at the road in gulkula garbage dump. it borders— in gulkula garbage dump. it borders it. one of the prosecutors, the federal prosecutors, the federal prosecutors, was there and he blocked — prosecutors, was there and he blocked with his pick up unit, alleway— blocked with his pick up unit, alleway and i said you can't pass, — alleway and i said you can't pass, there's an operation going _ pass, there's an operation going on— pass, there's an operation going on and you cannot continue. we were like what on earth _ continue. we were like what on earth is — continue. we were like what on earth is going on here? at that time, — earth is going on here? at that time, we — earth is going on here? at that time, we didn't suspect much so we waited — time, we didn't suspect much so we waited in the cars. for a while — we waited in the cars. for a while and _ we waited in the cars. for a while. and then, they let us pass — while. and then, they let us pass and _ while. and then, they let us pass. and that was it. the next

day on — pass. and that was it. the next day on october 29, one of the federal— day on october 29, one of the federal prosecutors came to the garbage — federal prosecutors came to the garbage dump and said we have another— garbage dump and said we have another site. you should come now _ another site. you should come now thals— another site. you should come now. that's when they took us to the — now. that's when they took us to the race _ now. that's when they took us to the race 71. we realised when _ to the race 71. we realised when they took as that it was close — when they took as that it was close to — when they took as that it was close to the same spot where we had been — close to the same spot where we had been stopped the day before _ had been stopped the day before. they were already federal _ before. they were already federal forensic experts next to the — federal forensic experts next to the river, they were expect —— extracting from a plastic bag — —— extracting from a plastic bag a — —— extracting from a plastic bag a black bag and they told us it— bag a black bag and they told us it had _ bag a black bag and they told us it had been recovered by scuba — us it had been recovered by scuba divers that were inspecting the river. and then, isaw— inspecting the river. and then, i saw one — inspecting the river. and then, i saw one fragment of bone that was: _ i saw one fragment of bone that was, you — i saw one fragment of bone that was, you know, considerably larger— was, you know, considerably larger than what we were seeing at the _ larger than what we were seeing at the garbage dump in cocula and almost not damaged by fire

and almost not damaged by fire and i_ and almost not damaged by fire and i thought well, if there are more _ and i thought well, if there are more remains like this, we nray— are more remains like this, we nray be — are more remains like this, we may be able at least to extract dna _ may be able at least to extract dna and — may be able at least to extract dna and compare it against the dna and compare it against the dna of— dna and compare it against the dna of the families. by then, i said he — dna of the families. by then, i said he had worked on a number of cases— said he had worked on a number of cases in— said he had worked on a number of cases in mexico where forensic— of cases in mexico where forensic evidence had been tampered with and you're constantly asking yourself what part of — constantly asking yourself what part of the evidence can you trust? — part of the evidence can you trust? and so, when we go to the river— trust? and so, when we go to the river and see this fragment that is— the river and see this fragment that is way larger and also not burnt, — that is way larger and also not burnt, it's _ that is way larger and also not burnt, it's like this is very different— burnt, it's like this is very different from everything we are seeing. we were not there when — are seeing. we were not there when the _ are seeing. we were not there when the bag was taken allegedly out of the river and we were _ allegedly out of the river and we were not there when the specific— we were not there when the specific fragment was taken out of allegedly from but bag.

my my name is 0mar and i'm the former prosecutor of the case in mexico.

in the months after the boys went missing, several —— civil unrest grew. in december, 100,000 people marched through mexico city to protest their disappearance.

injanuary in january 2015, the attorney general announced they had found a dna sample that matched one of the missing students. the government said the case was closed. and that the dna from the bone in the river matched missing student

alexander more of an nco, confirming their account which they described as the historical truth. in this official version, the students left of the iguana bus terminal in four buses. corrupt local police working for the mayor and a local drug cartel had attacked them and detained a group of 43. cartel gunmen murdered them, burning their bodies at the dump and throwing their ashes into the rivers and one. ., , , .,

one. for us there is no scientific _ one. for us there is no scientific evidence - one. for us there is no scientific evidence to l scientific evidence to establish the official story. whoever knows what that fragment is coming from know something about what the rest of the remains of the students may be. it holds the key to a lot of information.

in april 2015, 0mar gomezjoins the in april2015, 0mar gomezjoins the team of independent experts as their local assistant.

the story of this fifth bus become central to the whole story because it is such an anomaly. this is the only bus that was not shot at and only of the five buses that the

students were on that will leave the city that night. it is also a bus that the federal government will lie about constantly. we knew with certainty that we had cracked into a major criminal organisation with direct ties to guerrero.

the weekend's weather is looking relatively quiet, certainly quieter than we started the week with all that stormy weather. still quite breezy with a few showers, particularly across parts of scotland. but for most of us, a dry weekend in store and things turning milder, particularly by the time we get to sunday. so to start off saturday, i think temperatures will be around about one or two degrees in the south and south—east of england. quite a chilly start here, a touch of frost, perhaps a few mist and fog patches around. they should clear away pretty quickly. windiest weather will be in the north and north—west. we could see gusts 60, even 70 miles an hour up towards the northern isles through saturday morning. some rain lingering mainly to the north of the great glen, i think for scotland, perhaps the odd, light spot of rain for northern ireland as well. but i think for southern scotland, england and wales we're looking at a dry day with some long spells of sunshine, areas of cloud

drifting around, particularly towards the west, and highs around nine or ten degrees. into saturday evening then, it's again going to turn quite chilly in the south and the east for a time with those lighter winds. but more cloud rolling in towards the west, could be the odd spot of drizzle coming out of this cloud as well. and it will be turning milder. belfast, plymouth, eight or nine degrees first thing sunday, but only round about three there in norwich. and through the day on sunday then, we've got a high pressure sitting out towards the near continent, this frontal system moving its way in from the atlantic that is going to draw in these southerly winds all the way from north africa. could be some dusty conditions in the skies as well as the mild air that we're going to be seeing. so things, i think, a little bit hazy with all that saharan dust around on sunday for some of us, some of it coming down in this rain that will arrive across northern ireland and western scotland later on in the afternoon. but a good deal of dry weather before that arrives, perhaps a little bit more cloud through parts of the midlands, south—west england as well. sunny spells either side of that and the top temperatures in the west

up to around about 13 for the likes of glasgow and belfast. into monday, that frontal system has slipped its way a little bit further southwards and eastward, so it's likely to bring some rain across much of northern england. i think wales perhaps down towards the far south—west, just across parts of scotland, it'll turn to snow for a time, perhaps over the highest ground of the southern uplands and to the north and the cooler air we're looking at single figures, seven or eight degrees, still not particularly cold, but 14, possibly 15 in that warmer air down towards the south—east. so the week ahead still fairly unsettled in the north and west. showers at times, drier conditions further south and east. and for all of us, it's a mild week ahead.

live from washington, this is a bbc news special on the crisis in the red sea. more ships attacked off the coast of yemen. fires but no injuries have been reported. the pentagon says one of its naval ships in the region was again targeted by a missile fired by the houthis. the us vows to continue

its attacks on the iran—backed fighters. we are slowly chipping away at their capabilities. so the capabilities they had yesterday they no longer have today's. and the disruption in commercial shipping could increase prices: how companies and manufacturers are responding. hello, i'm azadeh moshiri. welcome to the programme. for the next half hour, we'll be focusing on the international response to houthi attacks in the red sea and the global impact. we begin with breaking news with the us announcing just moments ago its forces destroyed an anti—ship missile aimed into the red sea which was prepared to launch

from a houthi—controlled area of yemen. houthi fighters have continued to target the key shipping