Facebook said Thursday that it has purged more than 800 U.S publishers and accounts for flooding users with politically oriented content that violated the company’s spam policies, a move that could reignite accusations of political censorship.

The accounts and pages, with names like Reasonable People Unite and Reverb Press, were likely domestic actors using clickbait headlines and other spammy tactics to drive users to websites where they could target them with ads, the company said. Some had hundreds of thousands of followers and expressed a range of political viewpoints, including a page which billed itself as the first publication to endorse President Trump. They did not appear to have ties to Russia, company officials said.