Facebook and Instagram have gone down in what appears to be a massive outage of parent company Meta's platforms.
People trying to log onto the websites and apps were finding error messages and were unable to refresh their feeds as normal.
Tracking website Downdetector indicated hundreds of thousands of reported outages for Facebook and Instagram, affecting multiple countries.
Meta has acknowledged the issues and says it is "working on this now."
Meta has been approached for comment. Its own status page suggests its products are experiencing major disruptions.
"We are aware of an issue impacting Facebook Login. Our engineering teams are actively looking to resolve the issue as quickly as possible," the page says.
Meanwhile Meta's communications officer Andy Stone posted: "We're aware people are having trouble accessing our services. We are working on this now."
