The Garda Commissioner is restricting his movements following contact with a garda officer who subsequently tested positive for Covid-19.
Drew Harris has been working from home for the past few days because of the requirement to self-isolate for 14 days.
He was tested over the weekend, but returned negative for coronavirus.
The officer was asymptomatic when he had a one-on-one meeting with the commissioner at Garda Headquarters.
He is now on sick leave.
The garda members of his unit who were close contacts of the officer are also restricting their movements and working from home.
Garda Headquarters said they have also been tested and have come back negative.
The commissioner's last public event was last Wednesday when he launched Operation Fanacht.
In a statement this evening, Garda Headquarters said: "Following a socially distant meeting late last week between the Garda Commissioner and one other person who a few days later tested positive for Covid-19, Commissioner Harris was tested for Covid-19 at the weekend.
"The test was negative.
"In line with public health guidelines, since being informed of this close contact the commissioner has been restricting his movements, but continues to carry out his duties.
"Public health advice was also followed at this meeting in relation to use of masks and hand sanitiser.
"Separately, following being identified as 'close contacts' of a positive Covid-19 case, a number of other members are currently 'restricting movement' in accordance with HSE Public Health guidelines."