The Trump administration says it is barring former European Commissioner Thierry Breton and four other European nationals involved in curbing hate speech from U.S. soil as part of a sanctions package targeting what it describes as digital censorship.

The sanctions, announced Tuesday, also revoke the U.S. visas of British citizens Imran Ahmed and Clare Melford, who respectively head the Centre for Countering Digital Hate and the Global Disinformation Index. Ahmed, who currently lives in Washington, faces immediate deportation, the Telegraph reported.

Germany’s Anna-Lena von Hodenberg and Josephine Ballon, leaders of Hate Aid, a non-profit that tracks digital disinformation spread by far-right groups, are also subject to the visa bans.

The move is the latest in a series of warning shots volleyed by the U.S. at allies over what it views as unfair efforts to regulate American social media and tech giants, including Elon Musk-owned X, which was slapped with a €120 million fine earlier this month for violating the bloc’s content moderation law.

In a statement, U.S. Secretary of State Marco Rubio described the targets of the newly announced sanctions as “radical activists” who had worked to “coerce American platforms to censor, demonetize, and suppress American viewpoints.”

Under Secretary of State for Public Diplomacy Sarah Rogers named the targets of the package in a thread posted on X in which she underscored the Trump Administration’s rejection of European efforts to crack down on hate speech.

Rogers justified Breton’s visa ban by naming the French official, who served within European Commission President Ursula von der Leyen’s first administration, as the “mastermind” behind the bloc’s landmark Digital Services Act (DSA). That legislation has allowed the EU to level multimillion-euro fines on American tech giants like Apple and Meta for breaking digital antitrust rules, and to go after X for failing to curb disinformation.

She also identified Britain’s Ahmed as a “key collaborator with the Biden Administration’s effort to weaponize the government against U.S. citizens,” and said Melford‘s Global Disinformation Index had used taxpayer money to “exhort censorship and blacklisting of American speech and press.” Rogers, who recently met with representatives of the German right-wing populist Alternative for Germany (AfD) in Washington, further named von Hodenberg and Ballon, both of Berlin-based non-profit Hate Aid, for allegedly censoring conservative speech.

Breton responded to the sanctions with a post in which he asked if former U.S. Senator Joseph McCarthy’s anti-communist “witch hunt” was being revived, and pointed out that the DSA had been approved by the majority of lawmakers in the European Parliament and unanimously backed by the bloc’s 27 member countries.

“Censorship isn’t where you think it is,” he wrote, questioning U.S. efforts to undermine the EU’s quest to reduce the spread of disinformation.

European Commission Vice President for Industrial Strategy Stéphane Séjourné on Wednesday backed Breton in a post in which he said “no sanction will silence the sovereignty of the European peoples.” French Foreign Minister Jean-Noël Barrot condemned the visa restrictions and defended the DSA, which he said ensures “what is illegal offline is also illegal online.”

The Trump administration is openly opposed to European attempts to regulate online platforms. Vice President JD Vance routinely rails against alleged attempts to use digital rules to censor free speech, and earlier this month said the EU should not be “attacking American companies over garbage.”

Tech policy professionals say actions like Tuesday’s sanctions package, and the previous issuance of veiled threats at European companies accused of unfairly penalizing U.S. tech giants, may amount to a negotiating tactic on the part of a White House that wants to underscore its discontent with Europe’s regulations — without risking new trade wars that could threaten the U.S. economy.