>> how do you scale somethig you learned from a jelly fish? >> techknow every saturday go where science meets humanity. this is some of the best driving i've ever done, even though i can't see. techknow. we're here in the vortex. only on al jazeera america. strikes descend into violent protests, s before brazil's world cup opening match. union officials are threatening to extend the subway stoppage through to the opening match. hello there i'm julie mcdonald, this is al jazeera live from london, also coming up. reopens after a five hour siege leaves 29 people dead. who is leading libya now? the election of the prime minister ahmed al matik is held

unconstitutional. battle for the eastern part of the country. one of the findings on claims of hard line muslim takeover in 21 u.k. schools. hello there welcome to the news hour. brazilian riot police have attacked striking metro workers with tear gas in sao paulo. subway workers have been on strike for five days demanding higher wages. the strike is causing chaos for commuters, in brazil's biggest city. students have been supporting the strike workers. gabriel alesando has the report. >> riot police are out in front

blocking any protesters from getting inside the immediate trow station. completely shut down because of the strike. you'll see what's left from the morning when a couple hundred protestors, most reply university student activists started burning trash in the street, completely blocking traffic in this major intersection. that's when the riot police came in broke the entire thing up. these student protesters were basically just showing their support for the metro workers that are on strike. the metro workers now are entering their fifth day of the strike in sao paulo, causing traffic chaos in the are city just a few days from the world cup opening in the this city. >> fernando haddad says all efforts are underway to stop the strike before the world cup. >> our problems are not just the

metro but everything. all protocols to tackle veenltsn convenientlies. >> hi there gabe are there any closer to fixing this? right now the government and labor unions are meeting behind closed doors to try to meet some kind of agreement. swee simply don't know yet, one of the big sticking points is that the policing, i'm sorry, one of the sticking points is that the state fired 60 metro workers that were taking part in this strike, that's six-zero. the union says these people must

be reinstated before they can stop the strike. they're still talking about the pay raise, we're waiting until they come out of the meeting, the strike does continue. i will say there are about 60 metro stations in sao paulo about 40 of them are open at this hour, this is a partial metro strike, not every single station is on strike but such limited metro stations open, it's causing chaos in the city. >> gabe, is it a feeling it must get sorted before kickoff, is that the pressure? >> absolutely, no doubt about it. the union even says that they're sort of using this world cup as pressure on the government. no doubt about it, the government doesn't really matter about the world cup, contingency plans in place. without a doubt both the federal and state and city government want to get this resolved,

because the stadium is about 20 kilometers outside the city and it's expected that the vast majority of the 61,000 football fans going to the match will take a metro to get there. so if the metro is not running and the station's closed it would be a absolute disaster for fifa and for brazilian government so they really want to get this thing resolved certain than later, a big traffic chaos in the city already. if it goes much further it will be even worse. >> gabe alesandro in sao paulo. pakistan's airport has reopened, pakistani taliban says it laid siege to karachi airport. and plans more attacks in coming days. renewed a campaign of air strikes against fighters in

north waziristan. sorayah lenny has the story. >> pakistani taliban killed the elite ranger, unfolding disaster was clear from afar as smoke covered the night sky. just before, dressed in security force uniforms. the gun battle followed with real members of airport security then the army was called in. >> confront, security forces confronted and killed them. they destroyed them. it is good that this operation was noafer about four, five hours. >> bus four or five hours is enough to bring up the question of the state of security in pakistan again. this is a country's busy eggsiet airport. last year more than 16,000 people passed through here.

security operations says corruption within many of pakistani services was one of the reasons the attack was able to be carried out. >> there is no city in pakistan that is safe, no place in pakistan that is safe. so i think the government has to take a very serious view of all of this and take action so that to neutralize the force he. >> what the rebels brought with them: an arsenal of suicide vests and heavy weapons. the pakistani taliban says this is revenge for the drone strike that killed their leader last year. it warns the campaign of revenge has just begun, plans more attacks to come. soraya lenny, al jazeera. infill trited the security forces.

>> ongoing issue which is we've had this region, karachi, before that couple of years ago we had you know a naval base air base attack. before that there have been other attacks on hard targets. the thing is, these such attacks do not happen until there's penetration of terrorists and of estremists in the largest establishment including law enforcement and military. unfortunately, we have no accountability are of law enforcement and larger security establishment therefore we never find out how much of the pen penn traition is -- penetration is really a problem and how much terrorists launch such attacks. can you not solve this problem of terrorism in pakistan without delinking it you know from the larger civil military relations balance in the country. that is crux of the problem. analysts, military and political, are on the same page,

and analysts, there is a complete understanding that all kinds of streft estremists and terrorists, will be considered as bad people as terrorists, i don't think we'll be able to solve the problem of terrorism in pakistan. >> blast happened, suicide bomber driving an oil tanker, caused the first explosion. second car bomb went off near a checkpoint. coming up this news hour, more rebel fighters hand over their weapons and surrender in the democratic republic of congo plus. >> i'm errory challenge. measured of journalist anna po

opolokofskaya. >> more news coming up. >> syrian president has issued an amnesty for a number of crimes. bashar al-assad. some jail terms including some death sentences to life in prison. the decree also grants an amnesty to foreigners who entered syria for purpose of joining a terrorist group. >> the details of this general amnesty is still sketchy, however it does address people with different crimes, different categories. for example, desserters from the country are given three months to turn themselves in. government to fight along terrorist groups as government officials say are given one month to turn themselves in and they will benefit from this

general am they advertise. abductors, people who have abducted different yrn syrians, request also benefit from this amnesty. the syrian minister of justice says this comes in the spirit of social unity and reconciliation and it builds on the military victories that the government had achieved on the ground in the past few months. this is spin that the government is trying to get this general amnesty comes five days after president assad won a new seven year term. and even though the oirption opn insists this is a farce, they say any solution in sea syria, solving their problems under reconciliation, and they want to promote this idea of making very

local deals with the local rebels in order to contain the situation and the crisis. libya's prime minister has accepted a decision that the decision was unconstitutional. deepen libya's ongoing social crisis. his appointment came after abdalla al sini resigned from the position in april. he then refused to hand over power, leaving libya with two prime ministers. backing al simi and says matig is illegitimate. >> constitutional chamber of the supreme court ruled that the decision by the general national congress is unconstitutional. >> it ends weeks of political deadlock. libya's supreme courting

declares ahmed's election unconstitutional snrp i will abide by the court's verdict and i'll respect its ruling. what happened today is one of the most important achievements in the state of law and institutions that we all aspire to. >> the parliamentary body that had appointed him in a controversial vote, the national general congress, it's now up to them to decide how to move forward. >> the gnc will hold a session where the prime minister will be elected. under the political divide getting the 120 votes needed will be very difficult. alternativelily, thealternativer someone different. >> retired general halifa haftar

who launched an opposition against what he says terrorists, labeled the gm as illetting. illegitimate. elections are due to be held here in just over two weeks. libyans want a strong leader who can being puts the safety of libyans above 9 else. stephanie decker, al jazeera, tripoli. joining me is a northeastern analyst of ish. pretty complicateon the outside. we have two people in power, now a decision from the court. why have things reached this point? >> in part because the election might have happened in a bit of unusual manner.

the general national congress thought the session had ended, at least some of the members thought so. they left and it was quite questionable whether or not did have the necessary core, necessary number of votes to be elected. there is a big are and broader dynamic, most important of which, these take over the most security functions. individuals who had been form err members of the libyan islamic fighting group, at some point many affiliated with al qaeda. this has compared a number of other parties in libya. >> just how fragmented are things, i'm thinking of general haftar fighting those militias. >> it's important, why haftar fighting those militias. 250 separate assassinations took

place over the past two years. what ended up happening is the sprayers remaining military forces, ones that defected during gadhafi's days, challenging ashar sha sharia, vy recently, felt that the libyan government hasn't protected them in any meaningful manner so they've taken matters into their own hands. >> what you're saying to me, it sounds pretty chaotic, you don't have a functioning violence. i can't imagine how that involves people's every day life. are the structures are there not being respected. >> the size of libya makes it very difficult for a central governmental to actually control it. it's very difficult to imagine how tripoli can govern a city

like benghazi, separated by a thousand kilometers of desert which has its own internal dynamics. it's hard to see how tripoli can't -- can govern these areas, division of power is apparently the only way out. >> what about haftar? >> he's accused of receiving backing from outside. obviously the a algerians, don't want to have libya as their playground. they do have interest in backing him but we don't have evidence to that effect. we have evidence, that sharia himself was receiving are being

financing from being sometimes qatar. >> thank you. >> thank you. >> iran's president is vowing tackling extremism and sectarian conflicts a priority. describing it as a turning point in their relationship, they've signed several cooperation agreements but aren't any closer in bridging differences over the conflict in syria. zana hodar reports from an ann . both countries attached importance to hasan rouhani's visit to the country. putting aside their political differences on syria and focuses on what is bringing them together. >> the iranian mountain came

here with many ministers and a powerful business delegation. i believe the agreement opens a new era in economic relations. >> there was no mention of a new era in political ties. does not signal that both countries are any closer on syria. there are deep divisions over that conflict with both countries supporting rival sites. iran is is a strategic ally of the syrian government. it was clear, iran hasn't changed its policy on syria. welcomed the reelection of bashar al-assad, an election the western allies called illegitimate. but these meetings were never really about syria. iran is eager to keep turkey as

a commercial partner. after all it is still under sanctions in the absence of a deal with international powers over its nuclear program. but those sanctions have not stopped ankara from purchasing much needed iranian oil and natural gas. that's why turkey is a financial life line since iran heats statemented to stop its are financial isolation. >> these improved relations between iran and the west make turkey easy to enlarge, to deepen its relations with tehran. >> there were a lot of smiles handshakes, describing these negotiation as a step in the right path. to stop the bloodshed in the region and fight what they caught terrorism. but neither side declared how to

do that. al jazeera, ankara. >> enlisting child soldiers. set to stand trial at the international criminal court. enough evidence to charge this defendant with many counts. surrendered in kigale in march. another group of rwandan rebels, supporters for the democratic fighters for the liberation of rwanda, fdlr, vying for control in the mineral rich east. the fdlr has been active in the region ever since the 1994 genocide, when the fighters fled to congo. are forcing thousands to flee

their homes. katherine soy has more from kigogo in south kigu. >> come down from hills that surround this village. they're going to be kept in this camp temporarily. the biggest question the elephant in the room is where do they move from here? where are they going to be taken to? the obvious option is to take them back home. this though is a very plit fiscally sensitive -- politically sensitive issue. participating in the rwandan genocide two decades ago. only go back if the government of rwanda commits to sitting down and negotiating with them. a lot of people you talk to here will say this is a very tall order. another plan that is being suggested by the co congolese a,

get them as far away as possible from areas that they operated in and from the border with rwanda. people in the central african republic, brokered last year when rebels seized power. fighting is mainly around religious lines and involved be christian militia. petro poroshenko is vowing to stop almost two months of bloodshed in the east. tried to distance himself from far right nationalism. but ukrainian military is radio crueting self declared neofa neofascists. david chater reports.

>> the latest cruets to ukraine's battle against the separatist uprising in the east. these volunteers have joined the so-called azoff battalion. a special force raised by the interior ministry in kyiv. they're getting basic training in tactics before being sent to the front line in the so-called people's republics bordering russia. >> just behind me is the crimean peninsula. some of the volunteers have come from crimea, come from sweden, come from russia. but the one thing, headquarters in a beach hotel is they believe in national socialism. they're all neofascists. this russian volunteer from the urals has adopted the battle name of uram. >> in another ten years i will

not belong in my country. a lot of people will not belong in their country. we'll be like the red indians in america. >> reporter: also among their ranks we found a 52-year-old italian who left behind a wife and child to fight for ukraine. >> my political information, i fight where my comrades are so i felt immediately at home. and they let me feel at home too. >> border guard came under rocket attack overnight. this in a city that is supposed to be back kyiv. i found separatist fighters downtown where they showed me around their fortifications in the old greek quarter of the city. >> the situation is strained and i don't know what the future holds. in the region, we have a lot of people, but we have less support in our city. >> reporter: the beaches were

full of sun bathers making the most of the weather. most of them seemed unaware or uncaring about the war being fought around them. but just along the coast the numbers of the azoff battalion were standing too under the ukrainian flag. the past is rearing its head again in favor of ukraine. david chater, al jazeera. vladimir chizoff, multinational south stream gas line, bulgaria has been under pressure from brussels to stop work on the pipeline. residents returning to their homes after flooding in siberia have found what could be the remains of a russian space rocket. there are conflicting accounts

of where the rocket came from. trying to identify the object for now they are keeping a safe distance. plenty more still to come this news hour. argentina's vice president is common summoned to court. over a printing scandal. why rescuers say it will take days to bring out a man stuck in a cave in the alps. details later in the program about rafa nadal's performance. ms brp i incarceration >> some prisoners try to get it performance.oners try to get it

>> a reminder of the headlines on al jazeera. police have fired tear gas on protesters in sao paulo. subway workers are still on strike despite, pakistan's busiest airport has reopened, after a five hour siege have left 29 dead. inin