The UK government has removed Nigeria and 10 other countries from its red list.
Health Secretary Sajid Javid, announced this on Tuesday while addressing Members of Parliament.
The 10 other countries initially placed on the list include Angola, Botswana, Eswatini, Lesotho, Malawi, Mozambique, Namibia, South Africa, Zambia and Zimbabwe.
The red list was reintroduced in late November as a precaution after the emergence of the new Omicron variant of the COVID-19.
Currently, all UK arrivals from red list countries must pay for and self-isolate in a pre-booked, government-approved hotel for 10 days.
They must also take COVID tests within 48 hours of setting off for the UK and PCR tests within two days of their arrival.