Truck driver killed when his semi careens off ramp, falls 60 feet to I-405 below

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BOTHELL, Wash. -- Interstate 405 was closed in both directions at State Route 522 near Bothell for hours Friday night when a semi went off a ramp and fell about 60 feet onto I-405 below; the driver was killed in the crash, the Washington State Patrol said.

Trooper Chis Webb tweeted that the truck was traveling westbound on the SR 522 ramp to southbound I-405 when the driver apparently lost control and the vehicle left the ramp and crashed to I-405 below.

Webb said the driver of the tractor-trailer was killed.  There were no other injuries.

This is a developing story and will be updated as more information becomes available.