BELFAST — The Maine Attorney General’s Office is investigating a confrontation in Belfast that ended with a police officer critically wounding a 29-year-old Swanville man armed with a shotgun.

The Belfast Police Department says officers attempted to stop a vehicle shortly before midnight Wednesday that had refused to stop for an officer in nearby Searsport.

When the vehicle eventually stopped at the intersection of Route 141 and Smart Road, police say the driver, Ben Thompson, stepped out with a shotgun.

Officials say Thompson was ordered to put the gun down, and he was shot by Belfast Officer Dan Fitzpatrick.

Spokeswoman Brenda Kielty of the Attorney General’s Office says Thompson was taken by ambulance to a Bangor hospital. He was listed in critical condition.

Kielty declined to release additional information.