France has summoned the American ambassador to Paris after he sent a letter to French President Emmanuel Macron accusing the country of not doing enough to fight antisemitism.

France’s foreign ministry said Sunday that Ambassador Charles Kushner was called to appear Monday at the Ministry for Europe and Foreign Affairs, describing his allegations as “unacceptable.”

The White House did not immediately comment. State Department spokesperson Tommy Pigott said Sunday that the U.S. stands by Kushner, adding that he “is our government representative in France and is doing a great job advancing our national interests.”

The formal summoning is a public expression of France’s displeasure. Kushner, a real-estate developer, is the father of Jared Kushner, former senior adviser to President Donald Trump.

In his letter, released Sunday, Kushner criticized France for making public statements critical of Israel and gestures toward recognizing a Palestinian state, saying these actions “embolden extremists, fuel violence and endanger Jewish life in France.” He urged Macron to enforce hate-crime laws, ensure the safety of Jewish institutions, and abandon steps that give legitimacy to Hamas and its allies.

France rejected the accusations, saying Kushner’s claims violate international law and the principle of noninterference in another country’s internal affairs. The ministry added that the letter falls short of the trust expected between allies.

The dispute comes after Macron last week dismissed similar claims by Israeli Prime Minister Benjamin Netanyahu. France hosts Europe’s largest Jewish population, about 500,000 people, roughly 1% of the national population.

The tensions also occur amid broader strains in French-U.S. relations over trade, UN peacekeeping in Lebanon, and support for Ukraine, though recent meetings between Trump and Macron have eased some differences. Charles Kushner had been pardoned by Trump at the end of his first term for past tax evasion and illegal campaign donation charges.