Some fake Facebook accounts, reportedly used by Russians to purchase political ads on the site, primarily trafficked content created in the U.S., according to a New York Times investigation.

Facebook in late September made public that thousands of political ads were purchased by Russian-linked groups. A slew of revelations on the Facebook pages has since emerged, including how the fake social accounts were used to create division during the 2016 presidential campaign.

The users, which Facebook said were connected to a Russian “troll farm” called the Internet Research Agency, created liberal and conservative pages like “Blacktivist,” “Secured Borders” and “Being Patriotic.” According to the Times, they used the pages to repost content created by activists and commentators to generate traffic.

In one instance, a page called United Muslims of America posted a video taken from Waqas Shah, a 23-year-old man from Staten Island.

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In the video, Shah, clad in an Arab tunic known as a thobe, is harassed by an actor on the street in order to gauge how unwitting bystanders react to a Muslim man being bullied.

In another case, Being Patriotic copied and posted a story from InfoWars, a right-wing conspiracy site, that said the federal government was scamming citizens out of their land. The post included a note from Being Patriotic that read, “The nation can’t trust the federal government anymore. What a disgrace!”

The pages have all since been suspended.

Last week, Facebook handed over more than 3,000 political ads purchased by the accounts they had identified. The company said the ads had been seen by 10 million people in the U.S.

But researchers believe that “organic” posts from the accounts had much further reach than the ads that were purchased.

Facebook will testify before the House and Senate Intelligence committees on Nov. 1.