On Monday a third fire broke out at a private hospice near Moscow which killed nine elderly people outright. The ventilator that caught fire in Spasokukotsky Hospital in Moscow was made at the same factory, the state news agency Tass reported, citing unnamed sources in law enforcement.
Four patients died in an intensive care ward, the city's Vyborg district attorney Pavel Danilov told AFP, adding that the cause of death of the fifth person was being clarified.
The fire was quickly put out and 150 people were evacuated from the hospital, the country's emergency ministry said.
Police in St. Petersburg, Russia's second-largest city, have launched a criminal investigation into the fire.
"A fire in the hospital is a nightmare", she told AFP.
"We're looking at different scenarios: the state of the [electricity] network, the medical institutions' engineering infrastructure, the medical equipment, and compliance with fire safety rules", it said in a statement.
It is the second similar fire in three days in Russian Federation. The victims were patients receiving artificial lung ventilation.
The authorities are examining the causes of both fires.
Five people undergoing treatment for COVID-19 in a Russian hospital died after a blaze broke out in the intensive care unit.
Faulty wiring is also believed to be behind another tragic fire that killed 11 people in a retirement home in the town of Krasnogorsk, near Moscow, on Monday.
The blaze in the privately-owned care home in the town of Krasnogorsk started at around midnight Sunday and was extinguished within an hour, emergencies services said.
With a total of 232,243 infections, Russian Federation is among the top four most infected countries in the world alongside the United States, Spain and Britain.
A new surge in coronavirus cases took Russia's tally past those in Italy and the United Kingdom on Monday (May 11), making it the third highest in the world.
Russia's reported mortality rate is much lower compared to other European countries hit hard by the pandemic, with 107 new deaths and 2,116 dead from the coronavirus as of Tuesday.