People have fun at Washington Square Park in New York, the United States, as temperature rises on May 3, 2020. (Photos: Michael Nagle/Xinhua)

People have fun at Washington Square Park in New York, the United States, as temperature rises on May 3, 2020.

Police patrol at Washington Square Park in New York, the United States, as temperature rises on May 3, 2020.

People pass by a placard reminding people to keep social distances at a park in New York, the United States, May 3, 2020.

People have fun at Washington Square Park in New York, the United States, as temperature rises on May 3, 2020.

People have fun at Washington Square Park in New York, the United States, as temperature rises on May 3, 2020.

People have fun at a park in New York, the United States, as temperature rises on May 3, 2020.

People have fun at Washington Square Park in New York, the United States, as temperature rises on May 3, 2020.

People have fun at a park in New York, the United States, as temperature rises on May 3, 2020.