Mayor Bill de Blasio says the city will conduct a 90-day review of "symbols of hate" on city property following violence at a white nationalist rally in Charlottesville, Virginia on Saturday.

He tweeted that a plaque honoring Philippe Pétain in the Canyon of Heroes will be one of the first that the city will remove. Pétain was a hero French general in World War One, but then became a Nazi collaborator.

De Blasio also joined Brooklyn officials in demanding streets in Fort Hamilton that honor Lee and Stonewall Jackson, another Confederate general, be changed. The Army had already denied that request.

Bronx Community College also announced that it was removing statues of Lee and General Jefferson Davis from the Hall of Fame for Great Americans on its campus.

President Trump, however, is speaking out against a push to remove Confederate imagery in cities across the country.

"Sad to see the history and culture of our great country being ripped apart with the removal of our beautiful statues and monuments," Trump tweeted Thursday.