Shots have been fired during clashes between migrants in the Serbian town of Horgos near the border with Hungary. Serbian media reported that surveillance cameras showed large groups of men with automatic weapons moving through Horgos towards the border on Thursday evening.
Police said on Friday residents had reported migrants shooting at each other. They found a 20-year-old with gunshot wounds in the chest and arrested several people.
Police said they were looking for anyone involved in the shooting. She is also looking for people involved in smuggling operations. Drones are also used. Border Police Chief Mile Jandric later said: "The people involved in yesterday's shooting have been identified." Police found about 600 migrants and seized firearms.
The number of migrants trying to get to Western Europe via the Balkans has increased significantly in recent months. It is estimated that hundreds are camping at the Serbian-Hungarian border and keep trying to get over the border fence, often with the help of people smugglers.
They are often pushed back by the Hungarian police and take months to get to Western Europe. Most of them come from Afghanistan and Syria, others from other parts of the Middle East and Asia, as well as Africa.