The major workplace chat app Slack is experiencing widespread problems.
Users across Scotland and the rest of the UK have reported being unable to talk with colleagues due to the outage.
In attempting to send messages on the platform, people were met with an error that showed the communication had not been delivered.
Workers in Glasgow, Edinburgh, Dundee and Aberdeen are among those who have reported issues.
Across the world, many large companies rely on Slack for workplace communications – including those where employees are working from home.
It has become a major part of keeping in touch with colleagues with hybrid working.
The outage reportedly started at around 10am on Thursday with tracking website Down Detector showing sharp spike in user problems.