|ATHENS, Jan. 10 (Xinhua) -- A Greek policeman was slightly injured here Tuesday during an armed attack at the headquarters of the opposition socialist PASOK party, police have said.
The perpetrator managed to flee after opening fire on a police bus outside the party's premises with most likely a semi-automatic rifle, according to witnesses and investigators.
No group has yet claimed responsibility for the attack.
The headquarters of the socialist party, which has ruled Greece for several years since 1981, have been targeted numerous times in recent years by anarchists, who have been operating in the nearby Exarchia area for decades, most often with petrol bombs.
The socialists as well as the main opposition conservative New Democracy party have condemned the attack.
