>> Flip flops in the snow, a symbol of the thin protection these migrants possess, as winter bites on Europe's Balkan frontier. Around 5,000 people are trapped in Bosnia on the Croatian border. Cold weather and tight police controls have halted their journey.>> We are waiting for the weather to be better, maybe after three months or four months, finally the weather will be better and we will start again our trip across the border.
>> This refugee town has been erected in the concrete halls of a former factory. It's one of three migrate centers that's have been set up. Where emergency workers rushed to provide accommodation and food, a snow draws in. It caters for thousands of people, including around 180 unaccompanied minors.
More than 23,000 people have entered Bosnia since January, mostly traveling from Pakistan, Afghanistan, Iraq and Iran. Still recovering from a devastating war in the 1990s, Bosnia has become a major transit country, as other EU members like Hungary and Slovenia sealed their borders. The United Nations' refugee agency says the country's procedures are slow and complex and it's called for its asylum application process to be simplified.