Athens  - Greek Prime Minister Costas Karamanlis called an emergency meeting with the country's president and the leaders of Greece's political parties on Tuesday in an effort to dispel the violence and rioting that has gripped the country for days.

"We will not accept individuals to use a tragic situation as an excuse for violence against society and democracy," said Karamanlis as he entered the meeting with President Carolos Papoulias, calling on "citizens to denounce all those responsible for the violence."

Greece braced for more widespread protests and possible violence Tuesday with the funeral of the teenager who was fatally shot by police over the weekend, triggering the worst rioting the country has seen in decades.

Widespread riots first erupted late Saturday shortly after the shooting of the teenage boy by a police officer in the bohemian Athens district of Exarchia and quickly spread to all corners of the country.

Although the circumstances surrounding the shooting still remain unclear, the officer has been arrested and charged with manslaughter.

A coroner's report showed that the boy was shot in the chest. His funeral will take place at the seaside Athens subrub of Paleo Faliro in the afternoon. (dpa)