VIDEO: Police officer threatens migrants with knife

A Greek police officer brandished a knife and slapped migrants after pushing and shoving broke amid the hundreds waiting outside Kos island's administration building to receive their immigration papers.

Mohammed Riski, a Syrian migrant from Yefrin who arrived seven days ago said "there are thousands of people here (on the island). Everyday comes about 1,000 people and they give everyday paper for 200 people, 300 people and so many people are sleeping in the streets. All of the hotels are full. There are no toilets or any services. Just the water - thank you."