Facebook users across Europe have been logged out of their accounts and forbidden from getting back on to the social network.
The outage caused panic gripped netizens from Hungary to the UK.
In the last hour, popular monitoring website DownDetector has witnessed a spike in outage reports from frustrated Facebook users.
People attempting to use the site were greeted with the message: “An unexpected error occurred. Please try logging in again.”
Users looking for answers quickly turned to Twitter, where the #facebookdown hashtag rapidly started trending.
As of posting, no statement was given by the social media giant for comment and explanation over the outage.
Early part of the year, the social network conglomerate has faced several issues on security and data privacy.