Sudan has lifted a ban on travelers coming from Britain, the Netherlands and South Africa as of Wednesday until April 11, the country’s civil aviation authority said in a statement.

The country imposed the ban on Dec. 23 due to the discovery of a new variant of the coronavirus in the three countries.

Instead of the ban, travelers from the three countries have to quarantine for 14 days after arriving in Sudan, and must report any disease symptoms to health officials, the authority said.

All travelers coming from abroad must have a certificate showing a negative test for COVID-19 issued within 72 hours of travel, it added.