Facebook and instagram suffer the most severe outage.
Facebook is suffering the most severe outage in its history, with key services rendered unusable for users globally for much of Wednesday.
The last time Facebook had a disruption of this magnitude was in 2008, when the site had 150m users – compared to around 2.3bn monthly users today.
Facebook’s main product, its two messaging apps and image-sharing site Instagram were all affected.
The cause of the interruption has not yet been made public.
“We’re aware that some people are currently having trouble accessing the Facebook family of apps,” Facebook said in a statement.
“We’re working to resolve the issue as soon as possible.”