An intensive care nurse looks over a patient in a hospital in MoscowImage caption: An intensive care nurse looks over a patient in a hospital in Moscow
A further 8,779 cases of coronavirus have been reported in Russia, bringing the country's total above 500,000.

The official national death toll rose to 6,532, after a further 174 Covid-19 deaths were recorded in the last 24 hours.

According to a tally kept by Johns Hopkins University, Russia now has the third highest number of infections worldwide, behind only the US and Brazil.

But it has recorded lower numbers of deaths than a dozen other countries.

A nurse in an intensive care unit in a Moscow hospital