BT broadband customers in Scotland have been left without internet services after a major power outage.
The problems, which began just before 9am on Wednesday, affected thousands of customers across the UK, including businesses and households in Glasgow.
BT technicians worked through the morning to resolve the issue.
A BT spokesperson said: "We're sorry that some BT and Plusnet customers have been experiencing problems accessing some internet services this morning.
"This is affecting around 10% of internet usage and has been caused by power issues at one of our internet connection partners' sites in London.
"Services are now being restored and engineers are working to fix the problems for the remaining customers that are affected."
Website Down Detector, which tracks instances of service disruption for a range of companies across the UK, registered more than 5000 complaints at around 9am, the peak of the interruption to services.
London and the south of England were the worst affected but services north of the border in Glasgow were also limited.
A total of 42 area codes were left without broadband, although the worst of the issues are now thought to be restricted to London, Birmingham and the north west of England.