SAN DIEGO -- A partial Facebook outage affecting users around the world has stretched beyond 10 hours. It's believed to be the biggest interruption ever suffered by the social network.
Facebook, the world's largest social network, had to turn to its rival Twitter to explain that its group of hugely popular apps were having difficulties.
Some users of Facebook and other platforms owned by the tech giant — including Instagram, Messenger and WhatsApp — reported intermittent problems accessing the services and posting content.
Instead of selfies and status updates, many got an error message that said: "Sorry, Something went wrong. We're working on getting this fixed as fast as we can."
Users went on Twitter to vent their frustration. The hashtag #FacebookDown and #InstagramDown were trending on Twitter for much of the day.
People used the tags to post memes about the outage, speculate about its cause and trade tips for how to survive without the company's apps. Twitter even made the subject into a Twitter Moment.
The outages began Wednesday afternoon ET and appeared to affect people in multiple regions, including the United States, Central and South America and Europe, according to tweets and the outage-tracking site DownDetector.com. Users in Asia were having problems on Thursday morning.
"We're aware that some people are currently having trouble accessing the Facebook family of apps. We're working to resolve the issue as soon as possible," Facebook tweeted around 2 p.m. ET.
Despite some early online rumors that the outages were the result of a distributed denial-of-service (DDos) attack — a type of hack in which attackers flood a company's network — Facebook said in another tweet that "the issue is not related to a DDoS attack."
That second tweet was posted around 3 p.m. ET. The company has provided no further updates in the eight hours since then.