A box truck crashed head-on into an SUV near Spanaway late Tuesday and the driver ran from the scene.
The collision took place about 10:40 p.m. on state Route 507 near Eighth Avenue South, the Washington State Police said.
Troopers said the truck driver was traveling west on Eighth Avenue South when he ran a stop sign and turned left, crossed the center lane into northbound traffic, drove into a Chevrolet Tracker and then jumped out and ran away.
The 46-year-old SUV driver was taken to Madigan Army Medical Center to be checked out.
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The box truck driver was described as a white man, about 6 feet tall with a medium build. He was wearing a black shirt and jeans.
State Route 507 at Eighth Avenue South was blocked for more than three hours.