MOSCOW, February 7. /TASS/. An entranceway of an apartment building collapsed in the town of Yefremov in the Tula Region, potentially trapping some people under the rubble, a representative of emergency services told TASS on Tuesday.

"An entranceway of a five-story apartment building collapsed in the town of Yefremov, tentatively because of a natural gas explosion. People could be trapped under the rubble," the person said.

Crews of first responders are heading to the scene.