The officer was shot in the leg and is expected to survive, according to Oregon State Police. Their identities were not immediately available.
It was unclear who fired the gunshots and Charpentier took no questions from the media. Assisting the agency are the Grande Ronde Tribal Police, Polk County Sheriff's Office, the Monmouth, Independence and Salem police departments; and Dallas Fire and EMS.
Authorities say a police officer and a suspect have been wounded in a shooting about 15 miles west of Salem in Dallas.
A Dallas, Ore. police officer was shot during a DUII stop outside a Walmart Friday evening.