The Stillwater County Sheriff's Office is investigating a possible road rage incident on Monday night in which one person was injured by a gunshot, apparently from his own gun.
In a statement, Sheriff's Sgt. Chip Kem said deputies were called just before 7 p.m. to a home in the Yellowstone River Ranch subdivision near Columbus by a woman who said a man had followed her husband and son home.
Once at the home, the man threatened the pair with a handgun in their driveway, the woman told deputies. During a struggle over the gun, the man suffered a gunshot wound and left.
"I can say that just the one weapon was involved," Kem said.
The family gave a description of the assailant's vehicle and a license plate number to deputies, who found the vehicle at Stillwater Billings Clinic in Columbus, where medical staff was treating the man for non-life-threatening injuries, the statement said.
The man was later transported to Billings for further treatment. Kem declined to discuss where the man was shot and said he was not in custody as of 1:15 p.m.
Nobody else at the home was injured.
Kem said the man's name won't be released until charges are filed by the Stillwater County Attorney's Office but said investigators believe the altercation started over a traffic incident.
"Preliminary investigations indicate that the incident may have been the result of a case of 'road rage,'" he wrote.
Stillwater County Attorney John Petak was not available for comment Tuesday afternoon.
Read more: Stillwater County authorities investigate shooting, road rage incident