An Amtrak train derailed south of Seattle, and authorities say "injuries and casualties" were reported.
The train derailed about 40 miles south of Seattle before 8 a.m. Monday, spilling at least one train car onto busy Interstate 5.
The Pierce County Sheriff's office says in a tweet that the train was heading south and that there were "injuries and casualties," but no numbers were immediately available.
All southbound lanes of Interstate 5 were closed south of Joint Base Lewis-McChord, and motorists were being warned to avoid the area.
Chris Karnes was on the train Amtrak train, three or four cars back from the front.
Karnes told The Associated Press in a brief phone interview Monday morning that he was "not sure what got hit."
He was unhurt and is now near the medical tents set up in a median area between north- and sound-bound Interstate 5, just south of DuPont, Washington.
Karnes said: "there are several cars that are hanging over the overpass," Karnes.