Britain will set out plans to restart international travel, using a "traffic-light" system as the country cautiously emerges from lockdown.
The announcement comes as the UK has set a tentative date of May 17 to relaunch international travel. Travel destinations will be ranked green, amber or red according to virus risk, Downing Street said in a statement late Saturday, with the government to provide more details on Monday.
International travel is currently banned except for a handful of permitted reasons. This has created massive pent-up demand for summer holidays abroad. The government said the new system "will help ensure the UK's vaccine progress isn't jeopardised and provide clear guidance for travellers".
People heading to low-risk "green" countries will simply take a virus test before and after they travel, the government said. But those going to amber or red countries will have to self-isolate or quarantine afterwards. Currently people arriving in the UK from abroad are required to self-isolate for 10 days.
British nationals who arrive from a banned "red list" of high-risk countries face costly quarantine in government-approved hotels. The government urged people not to book summer holidays, saying it was "too early to predict" which would be the green-lighted countries.
The government has announced it will allow a number of people to attend public events, such as football matches from this month in trials of a virus certification system. But it has not made clear whether it will issue "virus passports" for international travel, an idea backed by many tourism-dependent countries and airlines but opposed by more than 70 UK MPs.