White Rock Beach in Killiney, south Dublin has been temporarily closed to swimmers following the discovery of E Coli.
Tests carried out on Monday, June 8th led to the discovery. The cause is unknown and further investigations are being carried out.
E Coli can cause sickness in both humans and animals and the public have been advised to avoid swimming in the water off White Rock until further notice.
"It is worrying that so early in the summer of 2015, and with the fine weather, that we have yet another E Coli warning," said Fianna Fáil councillor Cormac Devlin.
“There were a number of them last summer and the repeated cause of E Coli along the Dublin coast must be found.”
