Cork County Council is warning the public not to swim at Coolmain beach.

It follows the detection of an increase in levels of bacteria found in a bathing water sample taken on Thursday.

An advisory notice not to swim at the beach came into effect on Friday and will remain in place until the water quality is compliant with Bathing Water Quality Regulations.

Cork County Council said the status of the notice will be reviewed following further sampling to be carried out in the coming days.