Police guarding the Greek Parliament on Thursday fired tear gas at 5 000 protesters taking part in the latest rally in Athens.

Greek demonstrators on Wednesday put up two banners around the base of the Acropolis to protest the police killing of a teenager on December 6.

The unrest that has gripped Greece for nearly two weeks has also complicated efforts to service the country’s debt, it was reported on Tuesday.

Greece stands open-mouthed as rioting triggered by the death of a schoolboy rips through the country’s cities.

Greek Prime Minister Costas Karamanlis began emergency talks on Tuesday on ways to halt rioting that is threatening the country’ government.