UK users were among those unable to access the social media platforms on Sunday.
The monitoring website Down Detector also reported issues across Europe, the US, and the Philippines.
More than 6,000 Facebook users worldwide logged problems, with many reporting a “total blackout” and others unable to log in. The reports spiked at about 11am.
More than 4,000 Instagram outages and 6,000 Whatsapp issues have also been reported to Down Detector. The apps are both owned by Facebook.
More to follow…