A 31-year-old Bainbridge Island man was arrested late Thursday night after he allegedly killed a man in his 60s at a job site on High School Road sometime Wednesday.

The murder suspect has been booked into Kitsap County Jail, said Bainbridge Island Police Chief Matthew Hamner, and will likely be arraigned in Kitsap County Superior Court Tuesday.

Hamner said police were called to the 7000 block of High School Road at 4:40 p.m. Wednesday, Aug. 29 when someone called 911 and reported a “man down” at a job site.

The identity of the victim has not been released, and police did not immediately name the suspect taken into custody.

“We’re just limited on what we can say at this point,” Hamner said.

When police and medics from the Bainbridge Island Fire Department arrived at the 911 call, Hamner said, “it was apparent that the circumstances were suspicious.”

Responding officers notified Bainbridge detectives of the death, and Hamner said the Kitsap County Incident Response Team was activated to investigate the crime, which also includes detectives from the Poulsbo, Bremerton and Port Orchard police departments, the Kitsap County Sheriff’s Office and the Washington State Patrol.

The Kitsap County Coroner’s Office responded to the scene late Wednesday and took custody of the victim. Hamner said the coroner’s office will determine the cause and manner of death, and notify the victim’s next of kin.

The investigation is continuing, Hamner said.

The chief said the death was a “sad, tragic event” — and the first murder on Bainbridge Island in more than 20 years.

“I want to make sure the Bainbridge Island community knows that they are safe,” Hamner added.

“We’ve brought this very professional and expeditiously to a resolution,” he said.