The officer, who was not identified, was treated for a jammed thumb, Mr. Kittleman said. Another officer arrived to help quell the disturbance. Four people were arrested for assaulting an officer three were arrested for sleeping in the park, and a woman was arrested for indecent exposure, Mr. Kittleman said. An officer said the woman was naked from the waist down. A federal regulation that prohibits sleeping in the park opposite the White House is under a court challenge.
Protesters say the regulation infringes on First Amendment rights.