Bomb explodes outside Greek tax office, no casualties

A bomb exploded early Thursday outside a tax office in northern Athens, causing material damage but no injuries, Greek police said.

The explosion at 0200 GMT in Kifissia district was preceded by telephone warnings placed by an anonymous caller to a news website, a daily newspaper and police.

According to the website, which received one of the calls, the explosive was placed in a bag outside the building.

Such attacks targeting diplomatic sites, public services buildings or banks are frequent in Greece, and are often blamed on the local extremist or anarchist movement.