UK lawmakers summon ex-Cambridge Analytica chief to testify

LONDON (AP) - British lawmakers investigating the use of Facebook users' information in political campaigns have issued a summons for the former head of data firm Cambridge Analytica after he declined to answer their questions.

Parliament's culture and media committee said Thursday it had summoned Alexander Nix to appear June 6.

It also issued a summons for Dominic Cummings, former director of the Vote Leave campaign in Britain's 2016 European Union membership referendum.

Last month Nix refused to appear before the committee, citing British authorities' ongoing investigation into Cambridge Analytica.

Committee chairman Damian Collins said Nix and Cummings could be found in contempt of Parliament if they ignored the summons.

The House of Commons can punish people "for disorderly and disrespectful acts committed against it" although in practice its powers are limited.