*UPDATE* Facebook went offline internationally for approximately 15 minutes.
Users reported the site is functioning again.
Facebook crashed in the US in February this year, after previously going offline for four hours in October last year due to network maintenance.
The network has 1.3 billion monthly active users, making it one of the most popular websites in the world.
The social network wasn’t working on web or mobile platforms, and even its developer platform was down.
Facebook is yet to offer an explanation on its own site or via Twitter.