A man was killed and a woman seriously injured in an apartment explosion in the Greek capital Athens on Thursday, and a terrorism investigation was underway, fire and police officials said.

One of the officials said Greece’s anti-terrorism police unit was investigating based on indications that the blast was caused by an explosive device.

The explosion highlighted the apartment and caused severe damage to the entire residential building in the Ampelokipi district.

Firefighters evacuated the injured woman to be transferred to the hospital and recovered the body of the man, who has not yet been identified.

Small bombings and arson attacks were common in Greece before and during the 2009-2018 debt crisis, most of them targeting politicians, judges and businesses. They have decreased in recent years.