SAN DIEGO — A Navy commander has pleaded not guilty to attempted rape charges involving a female, off-duty sailor at her home in San Diego.

Cmdr. John Michael Neuhart II entered his plea in a San Diego court on Monday to attempted sexual assault charges and a burglary charge. Police say officers chased him into a canyon near the woman’s home after she fought him off and arrested him.

He remains free on $100,000 bond. He could not be reached for comment.

Detectives say the victim was an acquaintance of Neuhart’s and went home with him after running into him while out with friends.

Neuhart is the commanding officer for a Guam-based helicopter squadron. Navy officials say he was in San Diego for a training conference.