Irish Water and Cork City Council are working to restore the water supply to more than 6,000 homes and businesses following a burst water main in Douglas.
Crews have repaired the burst water main in the area, with a full water supply expected to be restored shortly.
Affected areas include Calderwood, Pinecroft, Grange, Frankfield, Ballycurean, Forgehill, Lenaghnamore, Marrayborough Hill, Mount Oval, Garryduff and parts of Coachill, Donnybrook, Passage West and surrounding areas.
Irish Water said it typically takes two to three hours following repairs for normal supply to be restored to all customers affected by an unplanned outage.
Thanking the Cork community for its patience, Oliver Harney of Irish Water said: "Irish Water understands the inconvenience to customers when an unplanned outage occurs".
"The crews worked as quickly and efficiently as possible to minimise the disruption to the community. We thank customers for their patience while these works occurred," he added.
Typically, it can take two to three hours following repairs for normal supply to be restored to all customers affected by an unplanned outage.
"It may take a few hours for the network to fully replenish with possible discoloration in areas for a period after that," Mr Harney said.
