Slack has been reported as down for many users across the UK.
Hundreds of people have said they are unable to send and receive messages on the website Down Detector.
Most of the users affected appear to be located in the UK or Japan.
The messaging programme has been a lifeline for many people having to work from home during the coronavirus pandemic, allowing many to keep in contact with their colleagues when they cannot speak to them in person in an office.
A spokesperson for Slack wrote on the company’s website: ‘Some people may be having an issue with Slack.
‘Some customers are having trouble with files, messages and connecting to Slack. We’re investigating and will have more information to share in 30 minutes.
‘Thank you for your patience.’
There have been more than 500 reports of the work messaging app being down since around 11am this morning.
Almost 40% of those experiencing issues say they are unable to connect to the programme, 34% say they cannot send messages, and 25% say they cannot send files.
Others have reported ‘strange behaviour’ such as old messages disappearing and reappearing in the app.
Signing in and out of the app does not appear to fix the problem.
Slack’s status monitor on its website says it is looking into an issue.
Amazon Web Services, which offers cloud and remote platforms, has also been reported as down by many users.
As of 12.30pm on Tuesday Slack appeared to be up and running again as normal.
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