Watch: How a server outage took down Microsoft Teams and Outlook

Microsoft has said the problem was caused by a higher-than-usual stress on its servers but that systems were now showing "early signs of stabilisation" as work continued on a fix. Up Next. 'I feel it's a sign of what's to come': Office workers on Microsoft outage.

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Video, 00:01:49 What we know about the allegations against David Walliams 'If I tell you to run, run': BBC joins a Ukrainian drone unit as it protects a front-line city.