“According to the preliminary version, a malfunction of the electric heater and emergency operation of the power grid,” TASS reports.
Earlier, the Ministry of Emergency Situations said that the death toll from a fire in a building on Komsomolskaya Square in Moscow had risen to five.
Prior to this, the Russian Ministry of Emergency Situations in Moscow reported a fire in a two-story building on Komsomolskaya Square.
Three helicopters and a train were involved in extinguishing it.