CLAREMONT, N.H. (AP) — An orthopedic surgeon has been accused of sexually assaulting a patient during an office visit, police in Claremont said.

The doctor, 70, pleaded not guilty at his arraignment Wednesday on charges of aggravated felonious sexual assault and attempt to commit aggravated felonious sexual assault, WMUR-TV reported. The doctor, who was taken into custody Tuesday, said he was in the process of hiring a lawyer.

Claremont Police Chief Brent Wilmot said an investigation began in December when a patient alleged she was sexually assaulted by the doctor during an office visit.