An IT error caused the Post Office to shut branches across the country earlier today.
The problem which affected counter services at a number of its branches meant that customers were unable to pay bills, post packages or collect benefits.
Branches were unable to operate for an hour and a half after a problem with the Horizon computer system.
The Post Office apologised for the issue which has now been resolved, saying on its Facebook account: "We’re sorry for any inconvenience caused by issues with counter services at some branches this morning. This has now been resolved."
A spokesperson for the Post Office reiterated these remarks before saying: "Our priority was to resolve the issue as quickly as possible. To do this there was a very short period when all branches were affected."
"We are continuing to monitor services to ensure it is business as usual in our branches."
The Horizon computer system, which is developed by ICL/Fujitsu services, has come under criticism in the past. In 2015 a report from Second Sight concluded that the system was responsible for accounting errors which led to the prosecution of sub-postmasters for stealing from tills.
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The Post Office refuted these findings, saying that the investigators were unable to show evidence to support the allegations regarding the Horizon system.
