YEREVAN, Armenia (AP) — Police in Armenia say eight people have been injured by an oxygen canister explosion at a cafe in the capital.

Police spokesman Ashot Agaronian said the explosion occurred Monday in a cafe in downtown Yerevan. He said three Armenians, three Russians and two Iranians have been hospitalized with injuries.

Agaronian says an 8-year old Armenian girl sustained serious injuries, while the others were in satisfactory condition.

The cause of the explosion wasn't immediately clear, but police have ruled out foul play.