Crash blocks all lanes of I-5 southbound at Northgate

SEATTLE -- A one-car injury collision blocked all lanes of Interstate 5 southbound at Northgate Tuesday afternoon.

The Washington State Patrol said the collision happened sometime around 12 p.m., and a two-mile backup quickly grew.

The driver was transported to Harborview Medical Center. Their condition was unknown at 12: 50 p.m.

There was no immediate details on what caused the crash. This story will be updated as more information becomes available.