Russian news reports said the assailants also used explosives, causing a massive blaze at the Crocus City Hall on the western edge of Moscow on Friday.
Some people were killed and wounded in the attack, but the number of casualties was not yet known, Russia’s state Tass news agency said.
Video posted on social media showed huge plumes of black smoke rising over the building.
Russia’s state RIA Novosti news agency reported that at least three people in combat fatigues had fired weapons into the crowd.
Tass reported that an evacuation of the venue was under way, and that riot police units were sent to the area.
AzVision.az
More about: