Some students at Queen's University's Halls of Residence in Belfast have been told to self-isolate after a small number of them tested positive for Covid-19.
It is understood that the buildings involved are in the Malone Road area, close to the university in the south of the city. Separately, Northern Ireland has been chosen as one of the areas to take part in a major UK trial of a potential vaccine to help in the fight against Covid-19.
Health officials are seeking 350 volunteers from the north to participate in the trial, which is expected to start by the end of the week.
Northern Ireland's Health Minister Robin Swann urged the public to participate. "The importance of finding a vaccine to help in the battle against this virus cannot be