The Biden administration on Wednesday condemned Russian efforts to influence the 2024 U.S. election as the Justice Department announced it seized 32 web domains the country has used for its covert campaigns.

The action also targeted two employees of RT, formerly known as Russia Today, a Russian state media outlet with content available in English, charging the duo with violating the Foreign Agents Registration Act.

Collectively, the two actions are some of the strongest moves taken under the Biden White House to confront accelerating efforts by the Russian government the intelligence community has deemed “the predominant threat to U.S. elections.”

Deemed “Doppelganger,” the Russian effort employed a mix of creating sites with slightly different web addresses that mimic U.S. news outlets, including one appearing to be The Washington Post, and are plastered with pro-Russian narratives. It also created other media brands to funnel Russian content.