More than 1,000 homes in Lincoln were blacked out by a power cut early on Sunday morning.
Western Power said the cut had first been reported to them at 3.54am and it affected mainly the LN2 postcode, to the north of the River Witham and covering the area around Lincoln Cathedral.
A total of 577 properties had their power restored within minutes of engineers beginning work.
At 4.30am, the company said that 1,045 properties were without power but engineers hoped to have the supply restored quickly.
By 4.42am, only 207 properties were still without supply, and at just after 5am, only one property remained blacked out.
Western Power directed customers to their power cut incident report for further information.
The incident report gave the cause of the incident as “a fault on our high voltage network in your area which we are working hard to resolve”.
The loss of power caused a number of alarms to go off in affected properties, police reported.
The Lincolnshire Police control room tweeted: “We are aware of a power cut in the Lincoln area which has caused a number of alarms to go off. Western Power are already on the case and are aiming to be fixed by 0530hrs.”
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