London, Dec. 6 -- Internal emails from Facebook, including some involving CEO Mark Zuckerberg, have led British lawmakers to conclude that the social media giant had deals with third party apps that continued to allow access to personal data of users.

An influential UK parliamentary committee looking into fake news released on Wednesday a cache of internal documents between Zuckerberg and employees, highlighting what its chairman called "key issues".

Several of the 250 pages of documents were marked "confidential" or "highly confidential" and related to issues such as charging developers for data access. Facebook had objected to their release. British MPs have been furious at Zuckerberg for not appearing before the panel.

Damian Collins,...