BEIJING — China reported seven new coronavirus cases Monday and officials said central government petition offices in Beijing, where people come from across the country to register complaints, will remain closed for the time being as a virus-control measure.

No new COVID-19 deaths have been reported in China in more than a month, although some have been announced retroactively after further tests were performed, and 82 people remain in treatment while another 450 are under isolation and monitoring as suspected cases or after testing positive for the virus without showing symptoms. China has reported a total of 4,634 deaths among 82,954 cases since the virus was first detected in the central industrial city of Wuhan.

With the decline in cases, China has moved to restart schools and reopen businesses and industries. However, some government offices that tend to attract large numbers of people in restricted spaces have largely remained closed to the public.

Central government petition offices are a particular concern because complainants often travel considerable distances to Beijing where they might live for weeks or months in substandard accommodations awaiting a response.

In its report, the official Xinhua News Agency said complaints could still be submitted online.

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SEOUL, South Korea — South Korea has reported 15 new coronavirus cases and one more death, bringing its totals to 11,065 cases and 263 fatalities.

South Korea’s Centers for Disease Control and Prevention on Monday said it believed 10 of the new cases were linked to passengers arriving from abroad.

Only two new cases were reported from the Seoul metropolitan area, where tens of thousands were tested in recent weeks after health officials discovered dozens of infections linked to club goers.

Officials have expressed hope that the transmissions are waning and plan to move ahead with a phased reopening of schools, starting with high school seniors on Wednesday.