People in 3,500 homes are without power after problems at a substation to the east of Southampton just before 1pm. Temporary power loss has affected areas including Sholing, Thornhill, Bursledon, Curdridge, Hedge End, Botley and certain surrounding areas.
Southern Electric said its engineers were working on the problem and hoped to have power back on in the majority of affected areas by 4pm.
More top news
The 2,000 year-old remains of an Iron Age woman, discovered in a bay on the Isle of Wight, have been donated to the island's museum.
Tuesday afternoon's forecast for the west of the region
Tuesday afternoon's forecast for the east of the region