Irish Water and Mayo County Council crews are working to repair a major burst on the watermain in the Belmullet area, which has left over 100 customers without water.

The burst occurred on the Ballyglass line outside Belmullet last night and is affecting areas including Clooneen, Gorthanaden, Glenlara, Barhauve, Tippe, Aughalasheen, Shanaghy, Dovila, Knockshambo, Knocknalina, Ballyglass and Broadhaven.

It's expected the repairs will be completed by about 3pm this afternoon, but it may take another 2 or 3 hours for the normal supply to return to all impacted customers, as the network refills.