Thursday's announcement is Facebook's first public disclosure of its having found and taken down a covert influence campaign linked to the Saudi government.
The people behind the campaign who Facebook did not name but said were linked to the Saudi government ran an expansive operation involving hundreds of Facebook pages and accounts.
The pages involved in the campaign had more than one million followers, Facebook said.
We're taking down these Pages, Groups and accounts based on their behavior, not the content they posted," Gleicher wrote.
In total Facebook took down 217 Facebook accounts, 144 Facebook pages, five Facebook groups, and 31 Instagram accounts that were part of the network.