London: MPs have demanded Facebook's chief executive Mark Zuckerberg appear in Westminster to face questions about the Cambridge Analytica data scandal engulfing the internet giant.

The call came as Cambridge Analytica suspended its chief executive, Alexander Nix, after he was secretly filmed by Channel 4 News claiming the UK data firm played a central role in Donald Trump's election victory and boasting of how to use bribes and women to swing elections.

The British firm said Nix would be suspended pending a "full, independent investigation" into his comments and allegations, which it said did not reflect the company's values.

Facebook has been put under growing pressure since it suspended Cambridge Analytica on Friday night. It has since been accused of failing to protect 50 million of its users whose data was obtained by Cambridge Analytica. The British firm denies it failed to delete the data when ordered to in 2015 and says it was not used in the 2016 US presidential election.

Damian Collins, the chairman of the digital, culture, media and sport committee, wrote to Mr Zuckerberg yesterday calling on the tech billionaire to give evidence in person.