Social media users in several parts of the world are reportedly unable to access their Facebook and Instagram accounts. Users reported today, Monday, that the company’s sites and mobile apps are inaccessible.

Several users immediately posted on Twitter, which is still operating without issue, about the apparent outage. Based on the post, the outage may be global. WhatsApp and Facebook Messenger are also reportedly inaccessible.

Reports on Down Detector indicate that the problem may be widespread. Facebook has yet to issue a statement or notice about the outage. This is a developing story.