A Dublin school which had to temporarily close because of structural defects last year has been forced to shut again.
A bacteria that can cause a serious type of pneumonia has been found in the water at St. Luke's in Tyrrelstown.
A sample of water from the school tested by The Department of Education contained Legionella bacteria, which can lead to a lung infection called Legionnaires' disease.
In a letter to parents, the school has been "advised to close the school until we receive Health and Safety clearance".
St. Luke's says it "always act in the best interest and safety of our pupils and staff".
St. Luke's National School in Tyrrelstown was among a number of schools forced to close temporarily late last year after structural defects were found.
Children had to stay at home, or take classes in nearby schools, while works to fix health and safety concerns were carried out.
Parents have been told to watch St. Luke's website for further updates.
