Monday, Facebook handed over some 3,000 ads, which it believes were bought by Russia, to congressional investigators. While they haven't been made public, more information is coming out about the ads, accounts, and pages that were said to be controlled by a Russian "troll farm" called the Internet Research Agency.

Many of the ads weren't supporting specific candidates, but rather seem meant to stoke division around flash points in American society, particularly around immigration and race relations. 470 different pages and profiles were linked to the Internet Research Agency, according to Facebook.

The Washington Post reported that one of the ads featured pictures of a black woman "dry firing" a rifle with no ammunition in it. It isn't clear what the ad was promoting. The New York Times found a wide variety of groups, including a fiery "Defend the 2nd" gun-rights group, a gay rights group called "LGBT United," and even an animal lovers' page with pictures of puppies.

One ad seen by CNN purported to support Black Lives Matter and was said to be geographically targeted to Ferguson and Baltimore, both cities the sites of major protests. But it isn't clear if the ads were meant to actually drum up support for BLM or if it was "portraying the group as threatening to some residents."

Facebook hasn't identified which ads were purchased by Russians, but as the articles referenced above show, some of the ads have been leaking out to reporters. The Daily Beast has recovered content from several accounts it believes were linked to Russia, like United Muslims of America, and reported on it.

Last week, Politico reported that ads late in the election season were purchased that urged voters to "[c]hoose peace and vote for Jill Stein."

Facebook has said it will dedicate itself to greater transparency in the future. The company will hire about 1,000 additional ad reviewers in the near future. Groups running political ads will be required to post copies of their ads publicly.

"These ads are significant to our investigation as they help demonstrate how Russia employed sophisticated measures to push disinformation and propaganda to millions of Americans online during the election, in order to sow discord and chaos, and divide us from one another," Rep. Adam Schiff (D-Calif.), ranking member of the House Intelligence Committee, told ABC News.

Schiff's committee is now in possession of the ads. He has said he hopes to release a "representative sampling" of the ads to the public.