The fault is in Abbeyleix.
Just over 140 homes and business are affected by an outage in a Laois town.
ESB are working to restore power in Abbeyleix, with the vast majority set to see their power return before lunchtime today.
Around 11 customers will have to wait until around 4 this afternoon.
ESB is apologising for the loss of supply and are working to restore power as quickly as possible.
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