New York (CNN) The network of pages and accounts that Facebook began to take down on the eve of the midterms over possible connections to a Russian government-linked troll group was followed by more than 600,000 users in the United States, the company said Tuesday.

As in previous efforts run by the Internet Research Agency (IRA), the Russian troll group that has been indicted by Special Counsel Robert Mueller, the pages targeted people across the political spectrum on Facebook as well as on Instagram, which the social media giant owns.

Some of the Instagram accounts that were part of the network also portrayed themselves as fan accounts for celebrities like Nicki Minaj, Kid Rock and Kendrick Lamar.

Some of the pages posted in French and had very few American followers, the company said.

Facebook said about $4,500 worth of ads were run from the pages but that none of the ads ran in the US. The company did not say where the ads had been purchased from or what currency had been used to buy them.