MOSCOW, March 22. /TASS/. There are dead and injured people among visitors and employees of the Crocus City Hall in the Moscow Region after an explosion and gunfire opened by unidentified assailants, eyewitnesses told TASS.

"It has been preliminarily established that there are dead and wounded people as a result of a blast and automatic gunfire at the Crocus City Hall," an eyewitness said.

According to the man, unidentified gunmen armed with assault rifles went on a shooting spree in the lobby and then inside the concert hall just before a concert by the rock band Picnic. He could not specify how many people had been killed or wounded.