Unidentified attackers opened fire on the headquarters of Greece's governing New Democracy party with a Kalashnikov assault rifle early on Monday, in what the government said was a worrying escalation in political violence.
Police said a bullet pierced the window of the political office that conservative Prime Minister Antonis Samaras maintains in the building, but no-one was hurt.
The early morning gun assault follows a spate of makeshift bomb attacks against journalists and political figures in the past week, some claimed by leftist groups angry at Greece's deep financial crisis. REUTERS