The UK's High Court granted a search warrant today

The British company at the centre of a Facebook data privacy row is being raided tonight by the UK information watchdog.

A special British High Court hearing granted a warrant for the information commissioner's office to enter Cambridge Analytica's London offices.

They're looking into allegations the firm got hold of people's personal info without authorisation in 2014.

Both Cambridge Analytica - best known for its role in Donald Trump's presidential campaign - and Facebook deny any wrongdoing.

In a statement today, Cambridge Analytica's acting CEO Dr Alexander Tayler said his company believed all data obtained by research company GSR in 2014 had been in line with Facebook's rules.

He said his company deleted all raw data following a request by Facebook the following year.

He insisted: "Please can I be absolutely clear: we did not use any GSR data in the work we did in the 2016 US presidential election."