Traffic backed up after serious-injury crash near Des Moines

DES MOINES, Wash. — A collision Tuesday afternoon had I-5 partially blocked near Des Moines. Around 3:20 p.m., traffic was backed up in the area by roughly 10 miles.

At its peak, traffic was backed up by 12 miles. All lanes on SB I-5 had reopened by 5:00 p.m.

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Police are on scene, at southbound I-5 and South 216th Street, investigating the crash.

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Washington State Patrol officials say the collision has resulted in serious injury.

Three vehicles were involved in the collision. Two of the vehicles were racing, according to police.

A driver was taken into custody for vehicular assault.  One person was seriously injured.

+ Details will be added here as they come in.