Emergency services are dealing with a mass casualty incident after a train derailed while crossing a highway bridge in Washington state.

The Amtrak 501 train was part of a high-speed service which was launched on Monday morning.

Deaths have been confirmed by the Pierce County Sheriff’s office.

It was on a bridge over the Interstate-5 highway in Pierce County, south of Seattle, when it came off the tracks.

Traffic cameras showed a carriage dangling off the bridge onto the highway, blocking the busy road.

Passenger Chris Karnes told CBS News: “We had just passed the city of DuPont and it seemed like we were going around a curve.

“All of a sudden, we felt this rocking and creaking noise, and it felt like we were heading down a hill.

“The next thing we know, we’re being slammed into the front of our seats, windows are breaking, we stop, and there’s water gushing out of the train. People were screaming.

“The tracks for this line were supposed to be upgraded to be able to handle higher speeds,” he continued. “I’m not sure what happened at this juncture.”

The Thurston County Sheriff tweeted: “Please be advised of a massive incident involving a train derailing on the Mounts Rd overpass on I5.

“The train is currently blocking I5.

“Please avoid this area and Nisqually Valley. Be patient with traffic and emergency vehicles in the area. WSP is investigating this incident.” Source: Sky

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