MOSCOW, Nov. 25 (Xinhua) -- At least 11 miners were killed and dozens remain trapped after smoke occurred in a coal mine in Russia's Kemerovo Region on Thursday, TASS news agency reported.

(File photo: Xinhua)

So far, 45 people have been confirmed injured with four of them in serious condition.

There were 285 people underground when the smoke occurred at a depth of 250 meters in the Listvyazhnaya coal mine in the city of Belovo.

A total of 239 people were lifted out of the mine. The location of the remaining miners has been established and their rescue has become complicated by heavy smoke.