ST. PAUL, (AP) - A chiropractor is charged with sexually assaulting a female patient at his office in St. Paul.

A criminal complaint says 54-year-old Paul David Thompson assaulted the 27-year-old woman during an appointment May 8. Thompson is charged with third- and fifth-degree criminal sexual conduct.

The complaint says a Ramsey County sheriff's investigator set up a call between the woman and Thompson during which Thompson apologized for the assault. The woman told police she had seen the chiropractor about twice a week for three years to treat her pain.

Minnesota Board of Chiropractors Examiners placed Thompson on probation in 1991 and again in 2005. Thompson told police complaints had been lodged against him for inappropriate touching.

A call to Thompson's home and office was not immediately returned.