The Vatican's envoy to France, Archbishop Luigi Ventura, is under investigation for sexual assault, reportsCNN.
The Paris prosecutor's office opened an investigation on January 24th, the source said.
Ventura, 74, has been based in Paris since 2009, serving as a diplomat for Pope Francis, reported Agence France-Presse.
The archbishop is alleged to have inappropriately touched a junior male official working at the Paris City Hall, Paris deputy mayor Patrick Klugman told CNN Friday.
He added that following the alleged sexual assault, the city hall filed a complaint with the Paris prosecutor.
The Vatican said in a statement that the Holy See was aware of the investigation and that it "awaits the results", while the Vatican's embassy in Paris said it would not comment on the investigation.