Denmark and Iceland are among the latest countries to be removed from England’s travel corridor list.
Transport secretary Grant Shapps confirmed the latest changes to the list in a tweet issued shortly after 5pm on Thursday (24 September).
Slovakia and Curacao have also had their quarantine-free travel status revoked.
Travellers returning from any of four countries will be required to self-isolate for 14 days upon arrival in England, starting 4am on Saturday (26 September).
Greece, Italy and Turkey, though, retain their places on the country’s quarantine-free travel list, despite rising rates of coronavirus infection. But no countries have been added to the travel corridors list this week by the government.
"Data shows we need to remove Denmark, Slovakia, Iceland and Curacao from the travel corridor list," Shapps tweeted.
"If you arrive in the UK from these destinations after 4am this Saturday, you will need to self-isolate for 14 days."
The Foreign, Commonwealth and Development Office (FCDO) has also updated its travel advice to advise against all but essential travel to Denmark, Iceland, Curacao and Slovakia.
Denmark saw a 508% increase in new cases over the past four weeks, while Iceland recorded a 921% weekly rise and there was a 115% increase in Slovakia between 2 and 23 September.
The Dutch Caribbean island of Curacao has seen a 481% increase in newly reported Covid cases over a three-week period.