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Riot police were deployed on the island of Lesbos as desperate migrants called for better conditions and permission to travel to mainland Europe.

Residents and ultra-nationalists held counter-protests before the two groups clashed, leaving 12 injured.

Violence broke out when 200 members of the far-right Patriotic Movement attacked migrants with stones, glass bottles and fireworks.

A short time later left-wing campaigners rushed to the aid of migrants.