Facebook CEO snubbed the request.

The move sparked fury among politicians from countries including Argentina, Brazil, Canada, France, Latvia and Singapore, who had travelled to the UK for the grilling.

Charlie Angus, a politician from Canada, said 'we are deeply disappointed' at MR Zuckerberg's no show and demanded to know why he decided to 'blow off this meeting'.

Where do the Six4Three Facebook papers come from? The documents seized by Collins and his committee stem from a court case being heard in California between app developer Six4Three and Facebook. Ted Kramer, who owns the developer, launched a suit against Facebook after the tech company restricted to data that one of his apps - Pinkini - could access. The app was designed to identify bikini photos among albums posted by friends onthe spotlight amid claims that Russian accounts used the platform to spread 'fake news' during the 2016 Brexit referendum. In America, Russians accounts have been accused of using Facebook to harm Hilary Clinton's prospects of being elected over Donald Trump. In the UK, some have claimed that misleading information was used to promote Brexit in the run up to the 2016 referendum. Cambridge Analytica Scandal: The data of around 87 million Facebook users was harvested by the company Cambridge Analytica (CA). It has been claimed CA used the information to assess peoples' personalities and come up with political strategies to sway voters to back Brexit and Donald Trump. Spread of extremism and hate Facebook has been repeatedly criticised for not being quick enough to take extremist content down