Certainly 21 kill by mining in Iran

An explosion in a coal mine in northeastern Iran has killed at least 21 people on Wednesday.

Over 30 injured victims were hospitalized, a part with respiratory distress. It is suspected that an accumulation of gas was the cause of the explosion. That occurred when employees attempted to start a locomotive after a repayment of the service.

Attempts are being made to pump oxygen into the 2-kilometer tunnels. There would be 32 more complications in the mine, which is close to the city of Azadshahr.