Swimming has been temporarily prohibited at Killiney Beach in south Dublin following a suspected wastewater discharge into the sea.
Dún Laoghaire Rathdown County Council said it believed the wastewater flow had occurred in the vicinity of the popular bathing spot on Thursday.
Officials moved to close bathing, placing a number of a prohibition notices in the area which they said would remain in place until Monday.
The situation is now being investigated by local authority engineers who have taken water samples. The council said further updates would be posted in due course.
Ed Sheeran has as much right to call himself Irish as The Pogues or The Smiths
‘My husband is obsessed with exercise and sports ... it feels a bit like an affair’
I spend a lot of time with men. It’s taught me to enjoy the silence
Who is the American who left €535,000 to Sinn Féin’s US fundraising group in her trust?
The Health Service Executive has also been notified of the situation.