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The British government is gearing up to ban international arrivals from four more countries — Bangladesh, Kenya, Pakistan and the Philippines — amid concerns over new virus variants but opted against including European nations that are facing a resurgence of the virus.

The Department for Transport said Friday the number of countries on its “red list” will reach 39 when the latest restrictions take effect in England beginning April 9. The other nations of the U.K. — Scotland, Wales and Northern Ireland — have similar lists.

Under the travel bans, international visitors who have departed from or traveled through red-list countries in the preceding 10 days are refused entry into England. Countries on the list include Brazil and South Africa, where two of the most concerning virus variants have been identified.

British and Irish citizens and people who have residence rights in the U.K. can enter, as commercial flights are not banned. However, they must quarantine in a government-approved hotel for 10 days at their own expense and must take a COVID-19 test on days two and eight of their self-isolation.

The measures are aimed at reducing the risk posed by new virus variants into the U.K., which has recorded Europe’s highest COVID-related death toll, with over 126,500 deaths.

No European nations are on the British red list, even though much of Europe is witnessing a resurgence of the virus that has prompted many countries to reimpose lockdown restrictions.

Prime Minister Boris Johnson’s Conservative government has faced questions in recent days as to why France, which is suffering one of the worst outbreaks in Europe, is not on the list. Yet putting France on the red list could have serious implications for trade flows in and out of the U.K., given its reliance on traffic from cross-Channel ports.