Facebook said that it now believes up to 87 million data have been poorly shared with the policy advice of Cambridge Analytica.
The figure previously cited by the whistleblower, Christopher Wylie was 50 million dollars.
In addition, the social network has confirmed that it believed some of the data on the people outside of the US.
The details were revealed in a blog post by the tech company’s chief technology officer, Mike Schroepfer.
This breaking news story is being updated and more details will be published soon. Please refresh the page for the full version.
You can receive Breaking News on a smartphone or tablet via the BBC News. You can also follow @BBCBreaking on Twitter to get the latest alerts.