COPENHAGEN, Denmark — Prime Minister Mette Frederiksen has announced local restrictions that close restaurants, bars, theatres and cinemas till the end of the year and switch students from the 5th grade and older to distance learning for a week before the Christmas holidays.

The restrictions, which also include shutting amusement parks, zoos and gyms in 38 municipalities, affect Copenhagen and its surrounding municipalities, and Denmark’s second- and third-largest cities of Aarhus and Odense.

The restrictions begin Wednesday and come as Denmark has seen a steady increase in infections in recent weeks. Denmark has had 90,603 cases and 885 deaths.

“The increase is worrying,” Frederiksen said.

Health Minister Magnus Heunicke added that the virus “still has the power to shut down the health care system and pull a trail of serious consequences behind it.”

Denmark on Monday also extended limiting public gatherings to 10 and urged that private get-togethers respect that number, and extended requirements to wear masks on public transportation and in shops.