ALSO READFacebook enabled advertisers to reach 'Jew haters' Facebook's ad scandal isn't a 'fail,' it's a feature Facebook introduces in-stream video advertisements Facebook inflates users' advertisement reach on its platform, says analyst Facebook reach widens in Asia-Pacific, user base rises to 1.94 bn in Q1
Last month, in response to calls from US lawmakers, Facebook Chief Executive Mark Zuckerberg pledged to hand over the ads to congressional investigators who are looking into alleged Russian involvement in the US presidential election, but he had left the timing unclear.
The materials would be delivered on Monday, Facebook said on Sunday.
Facebook, the world’s largest social network, has become a primary platform for internet political ads because it has a wide reach and gives advertisers powerful targeting capabilities. For that reason, it may possess valuable clues for US investigators.
Facebook has already provided information about Russia-linked ads to US special counsel Robert Mueller.