People are reporting problems with Facebook, Instagram and WhatsApp... via Twitter.
Users started reporting outages at around 4pm UK time on Wednesday.
Even Facebook, which also owns Instagram and WhatsApp, used the rival social media site to report issues.
It wasn’t long before #FacebookDown and #InstagramDown trended on Twitter.
And of course, the people of Twitter did what they do best... have a good old laugh about it all.
HuffPost UK has reached out to Facebook for further comment.