The incident is reported by RIA Novosti and the Baza Telegram channel.
The explosion occurred at 7:28 am. It is specified that there was a Magnit store at the site of the explosion - now nothing is left of it.
The explosion occurred at a time when the store had not yet opened. It is believed that there was one security guard in the building. Later, he was found with signs of life under the rubble and taken to the intensive care unit.
Later, Interfax clarified that the security guard Zurab Zaseev feels fine.
"I worked at night in this building, fell asleep in the morning, and woke up from the explosion. Somehow he crawled out of there", - the publication quotes the words of the guard.
He also added that there was hardly anyone else in the building.
According to the publication, detonation of the gas-air mixture as a result of a leak from faulty equipment is called as a preliminary cause of the explosion.