Police in Bosnia have sealed off a northern town in a large-scale operation against Islamic militants.

Around 600 officers are searching homes in the isolated town of Gornja Maoca, known to be a stronghold of Islamic extremism. A large number of weapons were found in the first few hours of the operation, which is being described as the largest since the end of the Bosnian War in 1995.

The town is also thought to be home to foreign jihadists who came to Bosnia to fight alongside Bosnian Muslims against the Serbs and the Croats during the war.