The final UK evacuation flight is scheduled to depart from Sudan on Wednesday morning, according to the Foreign Secretary.
James Cleverly urged British nationals who wished to leave the war-torn country to travel to Port Sudan.
The evacuation airlift was thought to have ended on Monday when planes left Sudan for Cyprus.
According to the government, 2,341 people have been evacuated on 28 aircraft so far during the airlift, which is the longest and greatest by any western nation in Sudan.
Downing Street stated that 1,195 were British nationals, with assistance from other nationalities, including Sudanese dependents of British people.
No 10 confirmed that, as of Monday, 18 Sudanese clinicians had left the country as part of the UK evacuation.
In updated guidance on its website on Tuesday, the Foreign, Commonwealth and Development Office said: “The UK government will run final evacuation flights from Port Sudan on 3 May.
“If you plan to leave Sudan, you should arrive at the Coral Hotel in Port Sudan by 10am on 3 May to be processed to travel.
“After that, no further British evacuation flights will operate from Port Sudan.”