A Kirkland carjacking suspect was treated at Harborview Medical Center Saturday night after crashing on I-5 southbound in a high-speed attempt to evade police, tying up traffic for hours.

According to the Kirkland Police Department, a local man in his 50s or 60s was sitting alone in his parked 1996 blue Jaguar XJ6 at the Kingsgate Park and Ride lot at around 12:05 p.m. when he was approached by the suspect. The assailant allegedly wielded a knife and demanded the keys to the vehicle, which the victim handed over without incident. The suspect is described as a white male in his 20s, 5′ 10″ in height, 170 pounds and wearing a sweatshirt and light colored pants.

The stolen vehicle was later spotted by a Medina Police patrol car traveling west on State Route 520. They radioed ahead to Seattle Police, who joined the 60-mile-per-hour pursuit on Interstate 5 southbound and heading directly into heavy traffic caused by road work and lane closures. According to police, the chase ended when the stolen vehicle collided with two other vehicles just north of the Denny Avenue bridge. The suspect suffered moderate injuries as a result of the traffic collision and was taken into custody and transported to Harborview for treatment.

His identity is not known at this time.

In an effort to keep I-5 moving again, WSDOT opened all express lane exits and HOV lanes to drivers until police and emergency crews completed their work. Washington State Patrol also assisted in the investigation and the knife used in the carjacking was recovered as evidence from the scene at the time of the arrest.

The carjacking is the second in Kirkland in as many weeks. A 16-year-old male was parking his vehicle Feb. 4 in North Rose Hill at around 6:55 p.m. when a white man in his thirties ordered him from the vehicle at gunpoint. Kirkland Police Lt. Bradley Gilmore said he wasn’t aware of any connection to the earlier carjacking but detectives are still investigating the incident and had not yet identified the suspect.