“We all really don’t want to return to the harsh constraints of this spring,” Mr. Sobyanin said.
The order for a partial lockdown contrasted with President Vladimir V. Putin’s suggestions that Russia has the virus largely under control and that a vaccine is ready. Mr. Putin warned on Thursday of rising cases.
Reported cases have been ticking upward in the Russian capital after plateauing at a few hundred per day over the summer. On Friday, Moscow reported 1,560 new cases. In the past week, Moscow hospitals reported a 30 percent rise in virus patients, Mr. Sobyanin said.
The rise in Russian cases comes despite the country being the first to register a vaccine last month for emergency use. People at high risk, such as doctors and teachers, can legally take the vaccine outside of a clinical trial, but few have done so. As of Friday, 126 health care workers in Moscow have taken the vaccine, not enough to slow the spread of the virus in a city of 13 million inhabitants.
Russia has recorded at least 1.1 million cases of the virus, the fourth-highest tally in the world after the United States, India and Brazil.
In other international news:
South Korea announced new social-distancing guidelines on Friday as millions of people prepared to travel to their hometowns during one of the country’s biggest holidays. The Chuseok holiday runs from Wednesday to Oct. 4. and poses a new challenge for health officials who have been struggling to contain infections. Starting Monday, villages cannot hold community parties of more than 50 people indoors and more than 100 outdoors, and facilities for entertainment, including drinking, will be closed in provincial towns.
The annual Carnival parade in Rio de Janeiro will be delayed next year for the first time in more than a century, Brazilian news outlets reported on Thursday. During a typical Carnival, which is held during the peak of summer in the southern Hemisphere, rambunctious street parties and performances engulf the city. But that could now be an epidemiologist’s nightmare, in a country that has so far reported more than 4.5 million cases and nearly 140,000 deaths, and whose president, Jair Bolsonaro, announced in July that he had tested positive. Rio de Janeiro alone has reported more than 250,000 cases, including more than 11,000 in the past week, according to a Times database.
The regional government in Spain’s capital, Madrid, has added eight areas to the partial lockdown that went into effect this week. Spain has been fighting a resurgence of the virus, and Friday’s addition extends the restrictions to about one million residents.
London will be made an “area of concern” and added to the British government’s watchlist of hot spots that could soon be subject to a local lockdown. Reacting to the news, the mayor of London, Sadiq Khan, said in a statement that the city was at a “very worrying tipping point” and urged residents to follow health guidelines, calling on the government to increase testing capacity.
Attendance at the French Open tennis tournament, which begins Sunday, will be capped at 1,000 spectators per day as part of tightened restrictions in France, which has recorded a daily average of nearly 12,000 new virus cases a day in the past week.
Reporting was contributed by Livia Albeck-Ripka, Pam Belluck, Choe Sang-Hun, Emily Cochrane, Johnny Diaz, Michael Gold, Joseph Goldstein, Antonella Francini, Winnie Hu, Mike Ives, Isabel Kershner, Juliana Kim, Andrew E. Kramer, Dan Levin, Raphael Minder, Saw Nang, Richard C. Paddock, Azi Paybarah, Daniel Politi, Alan Rappeport, Simon Romero, Liam Stack, Daniel E. Slotnik, Anna Schaverien, Eliza Shapiro, Jeanna Smialek, Mitch Smith, Eileen Sullivan, Michael Wines, Elaine Yu, Mihir Zaveri and Karen Zraick.