“According to preliminary data, the unlawful reconstruction of the ventilation system in the bathroom caused the incident in the apartment building,” the Telegram statement said.
It is noted that an electric fan was installed in the bathroom, the use of which is prohibited in rooms with gas equipment.
“When the electric fan is turned on, the natural ventilation of an apartment building may be disrupted, which contributes to the accumulation of CO2 (carbon dioxide. -
RT
),” the text says.
The day before, three people were injured by an unknown substance in a house in the south-east of Moscow.
Later it was reported that fumes of hydrocyanic acid were found in the entrance of the house.