An attempt to nab a motorist who ran a stop sign led to a crash between a motorcycle and a Belfast police cruiser that sent a Swanville man to the hospital and closed Route 1 for several hours Monday evening.

Because a Belfast police officer was involved, Waldo County Sheriff's Office investigated the accident. Officials from the sheriff's office did not immediately comment on the accident, but Sheriff Jeffrey Trafton released a preliminary report Tuesday morning. Details matched an earlier description by Belfast Police Chief Michael McFadden.

Speaking at the scene, McFadden said Belfast Sgt. Matthew Cook was traveling south on Route 1 at the west end of Veterans' Memorial Bridge when he saw a car traveling in the opposite direction “blow the stop sign” at the northbound on-ramp to Route 1 at High Street.

“He activated his lights, came to a stop and had to let other traffic go by, and when he made his turn the motorcycle hit him in the driver's-side door,” McFadden said.

The motorcycle, driven by Mark Belleisle, 56, of Swanville, had been following behind the cruiser.

The accident occurred at around 5:45 p.m.

Cook was seen walking around at the scene afterward and appeared uninjured. McFadden said he “never saw the motorcycle coming.” The cruiser's side-impact airbags activated, which McFadden said suggested a hard collision. Other observers made similar comments about the extent of damage to the driver's side door.

Belleisle was conscious after the crash and could be heard moaning as emergency personnel moved him onto a stretcher and into an ambulance. It was unclear whether he was wearing a helmet at the time of the crash.

He was taken to Waldo County General Hospital and transported by helicopter to Eastern Maine Medical Center.

According to the sheriff's news release, Belleisle "sustained broken bones as a result of the crash" and was in "stable" condition as of Tuesday morning.

Route 1 was closed immediately after the crash. It was reopened to regular traffic at 9 p.m.

During the road closure, city workers and emergency personnel detoured traffic around the bridge by way of High Street, City Point Road, Kaler Road, Robbins Road and Swan Lake Avenue.

State Police are reconstructing the accident scene. Waldo County Sheriff's Office is continuing its investigation.