Facebook users around the world are reporting issues logging into and posting on the site as well as on Instagram and WhatsApp.
Facebook hasn’t given a reason for the outage, and provided minimal information other than acknowledging it is aware of the outage.
Facebook shares were relatively unchanged Wednesday afternoon.
The company acknowledged the outage in a tweet Wednesday, saying, “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.”
It later confirmed the problem was not the result of a DDoS attack, which refers to a Distributed Denial-of-Service attack in which a hacker overwhelms a site by flooding it with fake traffic.