. >>> hello, i'm darren jordon in doha with the world news. also ahead - pushing into palmyra. syrian forces say they have entered a city held by isil >>> an outcry against the prison inside given to mel -- radovan mladovic >>> belgium police arrested six people in brussels during raids in response to tuesday's attacks. the operation took place in and around city neighbourhoods. two suspects on the run after bombings killed 31 people and hundreds more. paul brennan has more from brussels. >> there has been a series of raids throughout the weeks. obviously the brussels bomb attacks intensifies the pressure on security and the police and this thursday we had a series of raids. there have been several argument operations conducted in brussels. sky skyabic and yetta. we were not sure whether they were outside and apprehended by law enforcement. or whether they'd been tain to the prosecutor's office and then arrested. and one at a house search in brussels. these are armed searchers. >>> remember, we are looking for two suspects understanding from the brussels bomb attacks. one perso

refugees tear down a fence as they are tear gassed by the police >>> hello, i'm darren jordon in dohah the world news. new concerns that a ceasefire in syria could collapse, following a series of violations >>> the u.s. presidential hopefuls step up their campaigns ahead of super-tuesday. and setting a new record in

refugees tear down a fence as they are tear gassed by the police >>> hello, i'm darren jordon in doha with the world news. new concerns that a ceasefire in syria could collapse, following a series of violations >>> the u.s. presidential hopefuls step up their campaigns ahead of super-tuesday. and setting a new record in orbit. an american and a russian head back to earth after 340 days on the international space station >>> thousands of refugees trying to get to western europe are stranded because of boarder controls in the ball can states. at the crease boarder with macedonia tensions rose as police fired tear gas and stun grenades to stop refugees tearing down fences that divided the countries. >> reporter: impatient and exhausted. they marched to the railway gate along the boarder, demanding to be let through. soon, things got out of control. some refugees managed to tear down part of the fence. others hurled stones at macedonian forces on the other side of the fence. they responded with tear gas. but rumour has spread around the camp that the boarder had opened. hundreds of refuge

. >>> hello, i'm darren jordon in doha with the world news. also ahead - pushing into palmyra.ian forces say they have entered a city held by isil >>> an outcry against the prison inside given to mel