At least three injured in Istanbul gas explosion: Governor

ISTANBUL: At least three people were injured, one critically, in a gas explosion at a packaging workshop in Istanbul on Saturday, city governor Huseyin Avni Mutlu said. 

The accident was caused by either a gas leak or an exploding gas canister, he said, ruling out the possibility of a terrorist attack. 

Television images showed heavy smoke coming out of the lowest floor of a building while injured people were carried on stretchers to ambulances.