as a result of which 170 houses in #Podolsk were left without heating and hot water in 20-degree frosts. #Roman #Ryazantsev, deputy head of #Podolsk's Housing and Utilities services, #Alexander_Chikov, head of the boiler station at the #Klimovsk cartridge plant, #Igor_Kushnikov, general director of the plant, and #Alexander_Samarin, former Minister of Energy of the #Moscow region, were arrested in criminal cases initiated after the accident.