The cause of the accident was not immediately clear and federal safety authorities will investigate
At least three people were killed on Saturday afternoon when an Amtrak train that runs between Seattle and Chicago derailed in north-central Montana, toppling several cars onto their sides, authorities said.
The westbound Empire Builder train derailed at about 4pm near Joplin, a town of about 200, Amtrak spokesman Jason Abrams said. The accident scene is about 150 miles north-east of Helena and about 30 miles from the border with Canada.
Source: The Guardian