There have been more violent scenes in the Greek capital, Athens, as riots triggered by the police shooting of a teenager continued for a fourth day.
Riot police clashed with protesters outside parliament, as a march to protest against the killing of 15-year-old Alexandros Grigoropoulos turned violent.
After the teenager's funeral in the south of the city, groups of youths threw stones at police and set rubbish bins on fire.
Violence was reported elsewhere in the country. In the second city of Thessaloniki, police battled groups of young people after a demonstration.
Hundreds of buildings have been damaged since the rioting began on Saturday and dozens of people have been arrested.
On Monday, protesters burned down the Christmas tree in Syntagma Square in the centre of Athens.
The country's top leaders have held emergency talks on the situation. Prime Minister Costas Karamanlis said young people should not use the "tragic incident" as an excuse for violence.