A natural gas explosion in Turkey‘s western province of Izmir killed four people and injured at least 20 others, the media reported.

According to a state-run TRT broadcaster, the explosion occurred at 2:43 p.m. local time at a business on the ground floor of a building in Torbali district.

TRT reported that 10 of the injured were in critical condition, and investigations by emergency teams at the scene were going on, Xinhua news agency reported.