The French foreign ministry says it will summon the US ambassador to Paris, Charles Kushner, over what it says are unacceptable allegations of failing to tackle a surge in antisemitism, the BBC reports.

Kushner, who is Jewish and whose son is married to US President Donald Trump's daughter Ivanka, made the comments in an open letter to French President Emmanuel Macron in the Wall Street Journal.

Echoing Israel's criticism of France days earlier, Kushner said there had been an explosion of hatred towards Jews in France since the war in Gaza began.

"France firmly refutes these latest allegations" which are "unacceptable," said a French foreign ministry statement, adding Kushner would be due to appear on Monday.

The ministry stressed that since the 1961 Vienna Convention, ambassadors were not permitted to interfere in a country's internal affairs.