Slack has now acknowledged the issues and is investigating the cause. | Illustration: Alex Castro / The Verge

Slack, the workplace chat app, experienced an outage this morning, with messages failing to send on the service. Reports began spiking on DownDetector at around 5AM ET and the service’s status dashboard acknowledged the issues with a post at 5:35AM ET, noting that “Users may be experiencing trouble with sending messages in Slack.”

But as of 6:13AM ET Slack reported that the issues had been resolved. “Slack is now back up,” a message read. “Users may need to reload their apps to see this restoration.”

Slack had elevated the status to an “outage” at 5:57AM ET:

Slack experiencing an outage across the app. Users may be experiencing trouble with sending messages, using workflows and various other actions in Slack. We’re investigating and…

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