Sweden registered 4,034 new coronavirus cases, health agency data showed, the latest in a string of records set in recent days amid a pandemic resurgence that has struck the country later than many other parts of Europe, but which now appears to be rapidly gaining momentum.

The Health Agency has said the outbreak was likely more severe during the spring when Sweden periodically suffered some of Europe’s highest per capita death tolls though limited testing at the time had meant many infections went undetected.

“There is continued increase in the number of cases in all regions except one,” said Karin Tegmark Wisell, head of the microbiology department at the agency.

“We are now also beginning to see a fairly significant increase on the number of intensive care patients.”