At least 100 people are without water in the north Mayo area this morning.
It follows a major burst on the Ballyglass line outside Belmullet last night.
The area affected includes Clooneen, Gorthanaden, Glenlara, Barhauve, Tippe, Aughalasheen, Shanaghy, Dovila, Knockshambo, Knocknalina, Ballyglass and Broadhaven.
Mayo County council have crews at the scene and hope to have the water supply back by 3pm.
