Over 1,000 properties around Lifford have lost electricity this morning due to an unexpected power cut.
ESB networks report a major outage in the Rossgeir area.
Crews are working on repairs and expected to have power restored by 1.45pm today (Tuesday).
Meanwhile, 32 properties in Ballymacarry, near Burnfoot in Inishowen are also impacted by a power cut. The estimated time for supplies to return is 1.15pm.