Shots were fired at an anti-riot van in Athens on Tuesday
and youths damaged a police car as some 2,000 students marched
in protests that have rocked the capital since police killed
a teenager.
At the start of the midday march, roughly a dozen youths
toppled a police vehicle, with the officers inside escaping
unscathed.
Earlier in the day, shots were fired at a riot police van
in the Goudi district of Athens, missing the 23 officers on
board but hitting the engine. One of the van's tyres also
burst.
A group calling itself "Popular Action" claimed
responsibility for the strike on Tuesday evening in an anonymous
phone call to zougla.gr, the news website said.
Police said they found seven shells and two bullet remains
from a 7.62 calibre rifle apparently fired from inside a park
that forms part of the Athens university campus.
Greek media said a Kalashnikov rifle was used in the attack.
"All possibilities are under investigation," police
spokesman Panagiotis Stathis told state television NET.
Youths have targeted police stations and torched police vehicles
in three weeks of sporadic unrest over the killing of 15-year-old
Alexis Grigoropoulos by a police bullet.