hello again. this is al jazeera live from london. coming up a hand shake in berlin but increasing pressure on athens to implement structural reform. a former presidential candidate in the sudan is jailed for corruption. >> i am announcing that i'm running for president of the

united states. >> and ted cruz says he wants to be the republican party's man to run for president. hello. al jazeera understands that the warring factions in yemen have agreed to talks in qatar at a time yet to be announced. any subsequent agreement could be supervised by saudi arabia. the country asked for help from its gulf neighbors as the security situation in the nation spirals out of control. >>reporter: this is a country on the brink of civil war. but residents are not going quietly as thousands protest against the advance of shia huti fighters. in response they're fired on and tear gassed. government buildings and its international airport are now

under huti control. yemen is increasingly divided between a north controlled by the hutis who are allegedly backed by iran and the south backed by its former president hadi. now the country's foreign minister is appealing for help to hold back the huti advance. >> nobody wants to be called into direct military action on the ground. the majority of us consider it a final option. however, if we felt compelled and if the ministers felt it necessary, we would without question go ahead with the proposed plan. >>reporter: this is what a gcc force could look like originally set up to respond to military aggression against member states bah rain kuwait qatar, saudi arabia, and the united united united arab emirates.

but yemen could be forced into sectarian war with foreign powers backing opposite sides. speaking in rhiyad saudi's foreign minister said he hoped the conflict could be peacefully resolved but if not they would take action. >> the legitimacy of yemen represented by president hadi alone. we hope the crisis will be resolved quickly and are ready to respond to any demand at the president's request. >>reporter: either way, each day of fighting deepens the suffering in this poor country. the greek prime minister has met the chancellor of germany for more talks on a greek bailout extension. in his first official visit to berlin he warned his country

will not be able to meet debt payments without new help but the chancellor remained form there would be no new money without greek reform. >>reporter: he was received with the usual pomp and circumstance. once inside he spoke of the need to reach agreement on a european level. however, there was also a strong message for his own people. >> the differences between our two countries bring shadows over us. the reparations are not just a material thing. it's an ethical issue. it's not just about greece. it's for the greek and german people who spilled a lot of people in order to deal with nazis during that period of time. >>reporter: for her part the chancellor repeated her same message.

>> we want greece to be a strong country economically. we want them to have growth. we also want greece to come out of this high unemployment and we certainly want to make sure that this very high youth unemployment can be overcome and structural reforms are necessary for this a solid budget is necessary, and a functioning administration is necessary. i think that's clear for both countries. >> but behind all this is the reality the german economic strength is helping to keep greece afloat potentially costing taxpayers many billions. and now a growing number of people say they've had enough. >> we can help to solve their problems but the greeks must want this too. to give them more billions makes greece's woes worse in the long run. you buy time that's right. but no one can seriously expect that we'll ever see that money again. >>reporter: the buying time can

only go so far because the prime minister of greece has indicated they could default on its debts within weeks. which helps explain why he came to the german capital, to try to build bridges with the leader of europe's economic powerhouse. but on the face of it there's been no tangible progress. dominick caine, al jazeera, berlin. the president of afghanistan has thanked u.s. troops for their work in his country saying they've all left behind an individual legacy making the comments during a visit to camp david where he's pushing for a long-term aid commitment and talks with barack obama tuesday. >> the transition from international forces to afghan forces has been smooth. we have endured immense sacrifice but that's our

patriotic duty. we want to thank you for the assist support mission because that is vital to the continued relationship and build up of the capabilities of our armed forces. >> the overall economy has been growing and the combined security forces are now larger and more capable. that is in fact no surprise to those courageous american service men and women and to the contractors and others who have been committed to this endeavor. the presidential candidate of senegal has been found guilty of corruption and sentenced to six years in prison. he's found to have illegally acquired real estate during his time as minister in his father's government. >>reporter: guilty of embezzling $1.4 billion under his father's

presidency. he's a former minister and prominent leader of the opposition did not show up in court to hear the verdict preferring to stay in his cell perhaps to demonstrate the level of trust he has in the justice system and knowing all too well the outcome of the trial. outside the courthouse, his supporters were out in numbers. fearing the protest could turn violent, the crowd is pushed further back. >> he is our future. i want to exercise my right to show support. they won't be able to shut me up. >> am necessity international accuses the police of using excessive force to suppress demonstrations. police fired tear gas and rubber bullets. the government says it's maintaining order stating no one is above the law including kareem. under his watch, several deals to oversea the portnd the construction of a new airport

were given to new businesses. up until then, companies from the former french colonial power controlled senegal's key assets. the court accused him of receiving kick backs from these deals. the verdict comes of no surprise. for supporters the justice system is delivering on a pledge to clamp down on corruption but for the opposition this is seen as a move to muzzle the leading member of the opposition. addressing his supporters the former president said the president has successfully eliminated his rival. in the deliberate act of a defiance members elected him as their candidate days before the verdict. election dates are yet to be set. rarely does such a punishing verdict fall on the rich and powerful in senegal.

for many this has also brought hope and confidence that justice can prevail no matter who you are. singapore has begun seven days of national mourning for its founding father. condolences and tributes are pouring in from across the world. >>reporter: images of le overlookover overlook mourns at the hospital where he died. it's where people have been coming to deliver get well messages and now their condolences. done tony wong is a retired civil servant and felt it was important to bring his grandchildren here. >> what he has done for us is such a strong foundation. what's going to happen in the near future is not going to be bad. >>reporter: flags were lowered to half mast to honor the

passing of whom many felt it was father of modern singapore. without le singapore as the world knows it may never have existed. born in 1923 he saw his homeland occupied by the british and then japanese. after training as a lawyer in britain, he became prime minister in 1959. a post he would hold for 31 years. under his leadership singapore was transformed from a tiny island with no natural resources into a high-tech power house. his strong leadership also had a darker side. >> local opponents often found themselves in court, some ended up bankrupt. freedoms were micromanaged along with the economy but le's people's action party was returned to power again and again with his oldest son now prime minister. through it all, he was unrepent nitty. >> if i ran a western style

democracy and took a straw poll and went according to the poll we would have come to grief. >>reporter: while freedoms were sacrificed, le repaid his people with economic miracle sealing a legacy as one of the 20th century's most important leaders. his body is now here at the prime minister's office for a private family wake. on wednesday, it will be moved to parliament house where it will lie in state until saturday so the people in mourning can pay their last respects. in the late afternoon, hundreds stood in line to sign books of remembrance, a personal message from those he led while condolence messages from people around the world were being received. a year since the first confirmed case of ebola in west africa. the world health organization is criticized for its slow response to the virus. and south africa's president

is under attack in cartoons deemed too controversial for state television.

al jazeera understands the warring factions in yemen have agreed to talks in qatar. the chancellor of germany has told the prime minister of greece that she wants greece to

grow in order to overcome high unemployment. he says greece is running out of money after receiving millions in bailout funding. and a presidential candidate in senegal and son of the former president has been found guilty of corruption and sentenced to six years in prison. now, the 2016 u.s. presidential race has officially kicked off with the senator from texas, ted cruz announcing he's running for the republican ticket. allen fisher has details [applause]. >>reporter: he'll be the first of many. >> i believe in the power of millions of courageous conservatives rising up to reignite the promise of america. and that is why, today i am

announcing that i'm running for president of the united states. [applause] [crowd cheering]. >>reporter: ted cruz is the first republican to officially enter the race to be president. the senator from texas enjoys support from the right wing of the republican party from christian conservatives. he appealed directly to them. >> imagine instead millions of people of faith all across america coming out to the polls and voting our values. >>reporter: he's perhaps best known for a 21-hour fillabuster on the senate floor. >> do you like green eggs and ham? i do not like them, sam i am. i do not like green eggs and ham. >>reporter: taking his lead republicans refused to enforce a funding bill leading to a shutdown of the u.s. government in 2013. it angered democrats and senior

figures in his own party. >> he's going to use his political ideology and persona to make himself the underdog the one speaking out for what hand balls to be are the people of the united states the people with no voice. so he's going to use the fact that a lot of people may not like him to his advantage. >>reporter: stepping into the ring first gives him a platform creates buzz and introduces him to a wider audience in america but with rich donors funding campaigns finding other candidates, it was something he needed to do. jeb bush son and brother of former presidents is the front runner and is raising lots of money and getting support from the party. and there's also chris christie the governor of new jersey who many people wanted in the race last time around and remains a popular figure while the governor of wisconsin, scott walker is picking up support as another voice.

now that he's in the race others may be forced to make their move sooner than they wanted. at least 37 people have been killed when three buses and a truck collided in peru. the crash happened on the country's main coastal highway. local police say one bus strayed into the oncoming lane slamming head on into two other buses. a truck then hit the wreckage iraqi security forces say they've discovered a mass grave containing the remains of their soldiers. it's thought the soldiers were killed by isil fighters. the discovery was made south of tikrit. five pro government fighters have been killed and eight others injured in an assault on sites controlled by isil northeast of tikrit. iraq's defense minister says it

plans to storm the city as soon as possible. the iraqi army paused the offensive to give any civilians left there a chance to leave fears of a regional conflict appear to have eased after egypt, ethiopia and sudan signed an agreement over a hydroelectric dam over the nile. little detail is known about what the agreement resolves. but the 6,000 megawatt dam on the nile is being built at a cost of more than $4.7 billion. once complete it will be africa's largest dam. the blue nile supplies 85% of water to the nile valley while nearly all of egypt's 82 million people live so cairo wants assurances the dam will not cut the flow of the river.

>> part of the problem comes from the fact that ethiopia has ignored egyptian protests and continued with construction of the dam. and i think officials in cairo basically came to the conclusion that continuing to oppose the construction of the dam wasn't going to do them any good. it would only sour their relationship with ethiopia and a good relationship with ethiopia is very important considering most of the water flowing in the nile flows from there. so inpart of this is because egypt really needs to have good

relations with ethiopia in order to continue to enjoy water from the nile river a report by doctors without borders has criticized the world health organization's response to the outbreak too slow and warned the global medical community is not prepared for another outbreak. >> all we know is that the delay caused by member states of the w.h.o. not acting cost valuable time in preparing a response. we're in a different place today but we should be much further along. this is not just a hatchet job against the w.h.o. but rather a reflection that the world is not prepared for an outbreak of this thisthis magnitude. we will have another problem if this happens, a huge problem

costing lives. nigeria's president election is now five days away. security is shaping up as the main election issue as the election continues. currency steep budget -- the prime minister of tunisia has sacked six police commanders over the attack on a museum last week. three gunmen killed 21 people last week. two attackers were also shot dead by security forces. a third suspect remains at large. the u.k. has announced new measures to counter what it calls islamist extremism banning the groups and forced closure of premises. the government will also crack

down on sharia courts. >> this partnership will empower those who want to celebrate our values and defeat ignorance. but to those people who do not want to join this new partnership, to those who choose consciously to reject our values and the basic principles of our society, the message is equally clear. the game is up. we will no longer tolerate your behavior. we will expose your hateful beliefs for what they are. where you seek to spread hate we will disrupt you. where you break the law, we will prosecute you. where you seek to divide us we will stand united and together we will defeat you. >> the world's newest nation south sudan is in the grips of civil war, increasingly the conflict is affecting its wild life as nick clark reports.

>>reporter: the flight plan is northeast and then south across a wilderness that could help rebuild a nation with its huge tourist potential. >> we're heading east and are coming up into the national park here. >>reporter: paul has seen much of the world but this is something else. >> you can fly easily two hours and not see anything but wild life and wild places. no human influence. but right here we have one of those last great places on earth. >>reporter: this is east africa's largest intact savannah. it is home to the second biggest animal migration in the world. millions of antelope follow centuries old seasonal migration corridors. there are elephant herds diminished in number but were in

sufficient quantity to make a full comeback. and the power of the white nile the waters of lake victoria heading for the mediterranean thousands of kilometers away. >> south sudan has extraordinary natural beauty from the white nile to an area three times the size of the serengeti. and now it seems the nation's wild life has become a victim of the war. fighters are said to be slaughtering wild life. we got the latest update. >> the situation is that some wild life populations are being heavily poached by civilians, by the government army by the army in opposition the spla in opposition, and by the spla for commercial bush meat hunting, as

well as for feeding themselves. so there's a lot of pressure on wild life populations. >>reporter: and that's crushing news for communities like this. they just want a chance to develop the resources they've got. >> we need peace. we need development. our children have been deprived. no schools. and most of the population are illiterate. this will help us to overcome. >>reporter: south sudan has a beauty you never hear about. it's all just war and instability. with its wild life and tourism potential, there's a hope for the future but now even that is at risk. nick clark, al jazeera, south sudan. in south africa cartoons reach a massive audience with millions of hits online but sometimes too controversial to be shown on television. >> there is a lot of good food here. >>reporter: it's an advertisement for fish and chips but it lampoons the president of

south africa. he's shown eating with his family at his sprawling home a controversial property because of the millions of taxpayer dollars spent upgrading its security. >> it was popular and still is. it's going to get people's attention. in advertising, you look at what people think and say at that time. >>reporter: it was hugely popular with the public but someone higher up didn't see the humor. south africa's state news banned it. but it still got plenty of hits online. >> i think it was hilarious. it captured it exactly. >> it's awesome. pretty awesome, yeah. >>reporter: another of his popular animations featuring an african jesus also got him into trouble. he says he's not setting out to

offend, only to poke fun and to push the boundaries. the killings at a newspaper in paris in january have only confirmed his views on freedom of speech. >> people will make fun of you in the real world. people will say bad things about you in the real world. so you just need to grow up about it and just accept it. >>reporter: he says his animations have had around 8 million hits online. that's because he's one of the first south african animators to feature local voices cultures and issues. >> it's quite refreshing for it to be south african. >>reporter: but despite his popularity, he's had to struggle to get his work on tv. do you feel like you're a bit of a ground breaker in a way? a black south african talking to south africans with different languages. >> ground breaker. [laughter]. >> i could say, yes, to a certain level. >>reporter: but this artist says he has a lot more ground to

break to make african voices more main stream. erica wood al jazeera. south africa. much more over on our website. this is techknow a show about innovations that can change lives. the science of fighting a wildfire. we're going to explore the intersection of hardware and humanity but we're doing it in a unique way. this is a show about science by scientists. tonight techknow investigates gold at any cost. we travel deep into the rainforests of peru. these illegal mining operations extend for miles and miles away from the main highway.