At least one Clark County sheriff's deputy shot and killed an inmate who was at a Vancouver hospital for treatment Thursday, an agency spokesman said.

Clark County Sheriff's spokesman Sgt. Fred Neiman, didn't specifically say what prompted the shooting late Thursday morning at PeaceHealth Southwest Medical Center, but said that the inmate "took action which resulted in an officer-involved shooting."

The inmate went into surgery after the shooting and later died from his injuries, Neiman said Thursday afternoon.

Two deputies were in a fifth-floor room guarding the 66-year-old man, Neiman said. It is unknown whether the patient had a weapon, Neiman said.

The incident was contained to the man's room, and it's unclear whether any medical staff were present.

Hospital spokesman Kevin Snyder said the shooting occurred on the hospital's Firstenburg Tower's fifth floor, a secure floor that requires anyone to be keyed in. He was unclear whether the man was on that floor because he was an inmate or for another reason.

Snyder said normal operations have resumed on that floor and throughout the hospital, which is just west of Interstate 205 on East Mill Plain Boulevard.

The man, whom officials said won't likely be identified until Friday, was being held at the Clark County Jail for charges of a parole violation from the U.S. Marshal Services, escape from community custody and possession of a firearm. He was receiving medical treatment at PeaceHealth, where he'd been since Wednesday morning, Neiman said.

Vancouver Police are investigating.

The deputies were placed on administrative leave, as is standard procedure.

No medical staff or deputies were injured, Neiman said.

-- Samantha Matsumoto

smatsumoto@oregonian.com

503-294-4001; @SMatsumoto55