Intelligence agencies could not prevent the murder of soldier Lee Rigby despite his killers featuring in a total of seven error-filled operations before the attack, a parliamentary watchdog has found.
In a statement, a Facebook spokesman said: "Like everyone else, we were horrified by the vicious murder of Fusilier Lee Rigby. We don't comment on individual cases but Facebook's policies are clear, we do not allow terrorist content on the site and take steps to prevent people from using our service for these purposes."
The Community Standards page of the social network's website has a section dedicated to violence and threats. It says: "Safety is Facebook's top priority. We remove content and may escalate to law enforcement when we perceive a genuine risk of physical harm, or a direct threat to public safety.
The family of Lee Rigby say they want to meet the Prime Minister to seek answers about his death.
Facebook stands accused of failing to flag web chat
ITV's UK Editor Rohit Kachroo looks at the findings of a report into the extent of intelligence agencies' knowledge of Lee Rigby's killers