Swimming bans have been put in place along a number of Dublin beaches. Tests have found high levels of bacteria including E. Coli. in the water at Killiney and Blackrock.
Dún Laoghaire-Rathdown County Council has issued a ban against all swimming and bathing along most of its shoreline.
The local authority is advising against swimming until Monday 3rd July, when it will release the results of further tests.
The areas affected include Killiney Beach, and Blackrock Bathing Areas and swimmers are being asked to obey the notice. An earlier ban in place at Seapoint has been lifted.
Fianna Fáil Councillor, Cormac Devlin said he has "asked the officials of the Council to try investigate the root cause of this re-occurring problem so it can be dealt with once and for all."
Authorities are also reminding pet owners to keep their animals out of the water.