U.K. authorities raid Cambridge Analytica offices in London

The London offices of Cambridge Analytica were raided overnight Friday by agents of the United Kingdom's Information Commissioner's office. The seven-hour search, which completed early Saturday, was authorized by a warrant to investigate the company's database and servers.

"This is just one part of a larger investigation into the use of personal data and analytics for political purposes," said the Information Commissioner's office of the raid. "As you will expect, we will now need to collect, assess, and consider the evidence before coming to any conclusions."

Cambridge Analytica is the data firm alleged to have illicitly acquired and used information from the Facebook profiles of tens of millions of Americans for targeted campaign ads. The Trump campaign was among its clients, as was a super PAC organized by incoming National Security Adviser John Bolton.

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Cambridge Analytica and Facebook both deny illegal conduct, and Facebook has suspended the data firm from its service.