A Dublin GAA club has informed its members that a juvenile player has tested positive for Covid-19.
Clontarf is the latest club to have a confirmed case, but has said training and matches will not be affected.
The news comes as fresh restrictions are introduced on sports fixtures and training as schools prepare for reopening next week.
A number of GAA clubs have confirmed players have tested positive for Covid-19, which has impacted on youth camps as well as senior football matches.
The GAA has said a single Covid case within a club should not be enough for it to shut down.
On Tuesday, Clontarf notified its members of the confirmed case.
Chairman Stephen McGinn said they had been notified by the HSE that a juvenile member had tested positive.
"We have been advised by the HSE that no players or coaches are considered to be a close contact of the member in question and that club activities should continue as normal," he said.
"As a club, we are satisfied with this advice and are happy for teams to continue training and playing while adhering to all Government and GAA guidelines."
Clontarf GAA did not respond to requests for a comment when asked if testing was being carried out at the club following the confirmed case.
Last week, Fingallians GAA Club shut down its juvenile games section temporarily after a positive Covid-19 test was recorded.
The Swords-based club cancelled this week's summer GAA camps for under-age members, although all adult games will proceed as normal.
There are currently no juvenile matches scheduled to be played in Dublin.
Over the weekend, a Dublin Senior Football Championship match between Raheny and St Oliver Plunkett/Eoghan Ruadh had to be postponed after a Raheny player tested positive for the coronavirus.
The postponed match was vital for both sides as they look to qualify from their group in the Dublin championship.
St Oliver Plunkett/Eoghan Ruadh needed a win over Raheny and hoped Kilmacud Crokes would beat Castleknock in the group's other game last Saturday.
Earlier this month, Meath club Ballinabrackey GAA confirmed a positive Covid-19 case within the club and said it was following relevant guidelines.
On Tuesday, new government measures placed restrictions on attendances at GAA games and training among teams to 15 people.
Following the announcement of the measures, GAA headquarters issued a statement seeking clarity.
The sports organisation said it was inviting acting Chief Medical Officer Dr Ronan Glynn and Nphet "to present the empirical evidence which informed the requirement for the association to curtail its activities".
The statement added: "The association will tonight be issu- ing an invitation to Dr Glynn to meet with its Covid Advisory Group in this regard without delay.
"The GAA and its members remain at all times committed to protecting public health."