(Granger, WA) -- Washington State Patrol is investigating a deadly crash that involved 10 cars off Eastbound I-82 off exit 58 in Granger. It happened Wednesday morning just before 6:30. I-82 was blocked for more than nine hours while crews cleared the freeway. When WSP arrived on scene, they found one driver dead. Three others were taken to area hospitals. Eastbound traffic was diverted to Zillah. The cause of the crash isn't yet known.

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