Internal Affairs investigators are looking into what happened after a police officer claimed he was assaulted Thursday night in Riverside Park.
Police responded at about 10:40 p.m. to a call for a police officer needing assistance. He claimed he fired his gun and that someone took it.
The officer had a laceration on his head.
When investigators then tried to question him again, the officer refused to answer questions.
Sources say investigators are questioning the officer's account.