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Federal Way, WA (June 4, 2026) – Two people were killed, and two others were injured early on Thursday morning following a high-speed rollover crash on westbound State Route 18, according to the Washington State Patrol.
The crash occurred around 1 a.m. and led to a full closure of westbound SR-18 between Interstate 5 and State Route 167 for several hours. Traffic backups extended into the late morning before the roadway reopened shortly before 1:30 p.m.
Troopers said a vehicle was observed traveling approximately 131 mph before passing a Washington State Patrol unit. A pursuit was initiated shortly afterward. During the incident, the vehicle struck a guardrail and rolled over.
According to investigators, two occupants were ejected from the vehicle during the rollover, while two others remained inside. The two individuals ejected were among those transported to Harborview Medical Center for treatment of injuries.
Authorities confirmed that two people died as a result of the crash. The Federal Way Police Department is leading the investigation into the incident.
We extend our condolences to the families of those who lost their lives and wish a recovery to those injured.
What Investigators Examine in High-Speed Pursuit Crashes
When crashes involve extremely high speeds and rollover dynamics, investigators focus on vehicle speed, loss-of-control factors, and roadway conditions at the time of the incident. Pursuit-related crashes also involve a detailed review of timing, decision-making, and compliance with pursuit policies.
Physical evidence, such as tire marks, rollover points, and vehicle rest positions, helps reconstruct how the crash unfolded. Investigators also evaluate restraint use, which is often a key factor in whether occupants are ejected during a rollover event.
