Coronavirus infections in Russia has hit a record, with the government reporting more than 10,000 new confirmed cases for the first time since mid-May.
The 10,499 new cases reported on Sunday take the country's total to more than 1.2 million.
Russia has the fourth-largest caseload in the world and has reported more than 21,000 deaths.
The Russian authorities insist there are no plans to impose a second lockdown in the country, which has lifted most of the virus-related restrictions imposed in the spring.
Kremlin spokesman Dmitry Peskov said on Friday that another lockdown was not being discussed.
At the same time, in Moscow, which reported more than 3000 new cases on Sunday in the biggest surge in months, officials have recommended the elderly to self-isolate at home and have extended forthcoming school holidays by a week.
On Thursday, Moscow's mayor, Sergey Sobyanin, also ordered employers to have at least 30 per cent of their staff working from home.