Several hundred protesters marched Friday against the arrival in Venice of the billionaire American ambassador’s luxury yacht, briefly clashing with riot police as they neared the vessel.

Activists described hospitality mogul Tilman Fertitta’s arrival as an unwelcome display of American wealth and influence at a time when many Italians see the Trump administration upending the post-World War II international order.

Protesters clash with police, shouting ’Shame!”

They marched carrying inflatable water toys and beach balls behind a sign reading: “Venezia non si USA,” a play on words meaning “Venice is not to be used,” with the USA acronym capitalized.

Protesters raised their arms to show they were peaceful as they reached a double line of riot police blocking access to the super yacht, but police pushed back with their shields when the demonstrators refused to stop. Inflatable toys flew through the air. After the clash, protesters yelled “Shame!” at the ambassador, the mayor and the police.