A power cut struck many parts of the Harrow area in the afternoon.
Many households in Harrow were left without power since around 1pm today (March 26).
This story has now been updated, as from 4.33pm UK Power Networks says power should now be restored to all customers.
The cut affected parts including Harrow on the Hill, Greenhill, West Harrow and more.
Specifically, UK Power Networks has listed CM4 0, HA1 1, HA1 2, HA1 3, HA1 4, HA2 7, HA4 4, NW11 0 and NW11 9 postcodes.
It is believed that this affected 693 reported customers, with the network receiving 35 calls.
UK Power Networks has stated this is due to an underground electricity cable faulted on the high voltage network, causing the area-wide power cut.
Engineers were at the scene to investigate and fix the issue.
In an update at 2.50pm, the network said: "Thanks for your patience this afternoon.
"Our staff are checking our equipment throughout the area to pinpoint the issue on our underground cabling network.
"In addition to this, they are liaising closely with our control room to find safe and reliable ways to divert power around any problems and get everyone restored.
"We know that with the current pandemic, our customers are more worried now than ever about the food in the fridge and freezer, so we want to try and help with advice.
"Food should keep for up to 6 hours in the fridge, and between 15-24 hours in the freezer if you avoid opening them."
The network estimated power would be restored between 3.30pm and 4.30pm.
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