MIGRANTS from Syria, Afghanistan, Iran and Pakistan are carving out a new route to EU territory costing just £225.
Bosnian police are stepping up patrols as thousands of migrants have already made the journey into the country via the Serbian border.
From there, they head to the border with Croatia, which is a member of the EU.
Up to 50 migrants were stopped by Bosnian police yesterday after they were found in a cargo train headed for Serbia.
The train stopped on Friday had been carrying coal and was halted near the Bosnian border town of Zvornik on the banks of the River Drina.
As the train was stopped, some of the migrants onboard jumped out and started running with many racing back to Serbia.
Local police gave no further details, but added that asylum seekers that mostly came from Afghanistan, Iran, Syria and Pakistan reach Serbia via Albania and Montenegro.
Bosnia had not been on the well-trodden migrant route through the Balkans to European Union nations until earlier this year when arrivals jumped.
About 11,000 people from Asia and North Africa have been registered as arriving so far this year.