A man who authorities believe was stabbed Friday afternoon in a federal park in Northwest Washington refused to cooperate with officers and denied being attacked, according to a police spokesman.

Sgt. Paul Brooks, a spokesman for the U.S. Park Police, said the adult male victim denied he was stabbed. Brooks said police believe he was stabbed in the chest in Meridian Hill Park, which runs along 16th Street, between W and Euclid Streets.

Brooks said the man flagged down a D.C. police officer about 2 p.m. at 14th and Chapin Streets Northwest, a few bocks east of the park, which is run by the National Park Service.

Brooks said the man was injured and was taken by ambulance to an area hospital. He said the wounds did not appear serious. But the spokesman also said the victim refused to help officers.

“He’s claiming he was not stabbed,” Brooks said. “He is being non-cooperative.”

Brooks said detectives were searching the park for evidence.