The Kathmandu District Administration Office has decided to seal Mahabouddha and Teku areas.
The decision has been taken following a meeting of chief district officers (CDO) of Kathmandu, Lalitpur and Bhaktapur on Friday.
Three new cases have been reported in Mahabouddha Friday alone.
CDO of Lalitpur Narayan Prasad Bhatta told Setopati that the three districts have also stopped distribution of passports and citizenship certificates. "We have also decided to upgrade the quarantine and isolation facilities in the Valley and monitor whether the safety standards and protocols have been implemented or not," he said.
The Kathmandu Valley has been seeing a surge in COVID-19 cases in recent times.