UPDATE: Follow coverage of the derailment in our live blog.

An Amtrak Cascades train derailed Monday morning in Washington and is hanging over Interstate 5.

KIRO-TV reports the high-speed train left from Tacoma and derailed near Lacey. Injuries and deaths have been reported, the Pierce County Sheriff's Department said, citing preliminary information.

“Typically, this type of Amtrak train would have 13 cars in it and could have up to 250 passengers,” @NorahODonnell reports https://t.co/2CyKkppdRE pic.twitter.com/Sh2OmDkiJZ — CBS News (@CBSNews) December 18, 2017

Washington Gov. Jay Inslee tweeted thanks to first responders.

"We're praying for everyone on board the train, and ask everyone to hold them in your thoughts," he said.

He advised commuters to stay away, referring to the derailment as "an ongoing and serious situation."

We are aware of an incident involving Amtrak train 501. We will update with additional details as they become available. — Amtrak (@Amtrak) December 18, 2017

This report will be updated.

— The Oregonian/OregonLive