Facebook has temporarily crashed around the world.
One of the world's most popular online social networking sites crashed around the planet on Thursday night.
Facebook, which boasts well over one billion users across the globe, was reported by downwhere.com as suffering a "severe" outage.
The site was down for up to half an hour, according to various online reports.
Users who tried to log in to their accounts were getting a message on their screens reading: "Sorry, something went wrong. We are working on getting this fixed as soon as we can."
The site downdetector.co.uk registered problems with Facebook from across Europe, Britain, Australia and Asia.
The outage reportedly also affected mobile sites and related apps.
Another popular social networking site, Twitter, was alight with the temporary demise of one of its online rivals.
CommSec tweeted: "Facebook $FB yet to respond to worldwide outage which saw popular networking site down for 20-30 mins. $FB closed $65.60 +1.9% in NY Wed."
Other tweets were less serious.
#facebookdown was trending on Twitter shortly after users could access Facebook again.
In September 2010, Facebook explained to its users how a technical fault caused another severe outage occurred for around two-and-a-half hours.
At the time, Facebook described it as the "worst outage we’ve had in over four years".
My mum and nan will be upset about #facebookdown. I should send them each a telegram to express my condolences — Will Black (@WillBlackWriter) June 19, 2014
I survived the Great Facebook Crash of 2014 #facebookdown — Neil Mcguire (@neil1954) June 19, 2014
I imagine millions wandering in aimless post-apocalyptic shock desperately searching for friends and family #Facebookdown #FacebookBackUp — mark little (@marklittlenews) June 19, 2014