Clashes hit Athens as shot boy buried

ATHENS, Greece (CNN) -- Clashes broke out in the Greek capital Tuesday as the funeral was held of a 15-year-old whose fatal shooting by police sparked days of rioting across the country.

Riot police were deployed across the city. They fired tear gas and were being pelted with debris. Police told CNN they feared a repeat Tuesday of the previous night's violence, which they said was out of control and the worst since the riots began.

Greek broadcasters reported further unrest after the funeral of Alexandros Grigoropoulos -- whose shooting on Saturday night triggered the violence -- in Paleo Faliro, a southern Athens suburb.

The events have exacerbated the unpopularity of the ruling party and left Prime Minister Kostas Karamanlis scrambling to shore up support.

Karamanlis met with President Karolos Papoulias and cabinet members before briefing political leaders on the country's security situation. Some 10,000 people marched on the country's parliament Tuesday to express anger over the teenager's death and vent frustrations over the state of the economy, unemployment and allegations of corruption.

Crowds of youths scuffled and threw rocks at police outside parliament before tightly banded ranks of riot officers pushed back the protesters.

Security officials have warned they a preparing for what could be worst night of rioting after the funeral.