The European Union pushed today for an urgent investigation into revelations that a firm working for Donald Trump presidential campaign harvested data on 50 million users.
EU Justice Commissioner Vera Jourova, who has called the breach "horrifying", was meanwhile to seek clarification from the social media giant during a visit to the United States this week.
Facebook has faced worldwide criticism over the claims that Cambridge Analytica, the UK data analysis firm hired by Trump's 2016 campaign, harvested and misused data on 50 million members.
The European Parliament's Brexit coordinator Guy Verhofstadt, a former Belgian premier, called for an investigation today.
"When is Mark Zuckerberg going to explain what happened with our data? The data breach is an absolute scandal," tweeted Verhofstadt, who heads the parliament's liberal group.
"The European Parliament must start an investigation. I will keep you updated about our progress."
EU digital commissioner Mariya Gabriel told a press conference "we are constantly following this case as it unfolds."
Gabriel added that the EU will say "loud and clear" that "the protection of personal data is a core value for the European Union."
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