Russian news agency ITAR-TASS reports there were bars on the windows of the single-storey hospital building which is located about 70 miles outside Moscow. Some patients apparently died while trying to make it to the main entrance to escape. Many others died in their beds.
More top news
The Duke and Duchess of Cambridge went salmon fishing in Canadian waters on the latest leg of their royal visit to the country.
What happens when a former president holds up a current president hoping to fly home for dinner with his family?
Following a bruising televised debate with Hillary Clinton, Donald Trump's week seems to have only got worse.