Updated

Greek authorities say seven people have been injured in a brawl at a camp for refugees and other migrants on the island of Lesbos, where overcrowding and a slow asylum process has fueled tension.

Police say five teenagers and two adults required treatment for light injuries.

The violence between Syrian and Pakistani teenagers, in which adults became involved, started early Monday at the Moria camp, where more than 3,000 people live. No arrests were reported.

About 5,400 people live in Lesbos' camps, which were designed for 3,500. The island is very close to Turkey and a main destination for migrants seeking a better life in Europe.

Camp residents are awaiting processing of their asylum bids. If these are rejected, they face deportation back to Turkey under this year's EU-Turkey deal.