An Amtrak passenger train derailed in Steilacoom, Washington, Sunday afternoon, according to the Pierce County Sheriff's Office.
Based on photographs from police and fire officials on the scene, it appears only four cars derailed. None of the cars, however, ended up in the water.
The Pierce County Sheriff's Office said there are no reports of major injuries. The Gig Harbor Police Department told The Seattle Times that it dispatched a patrol boat to help environment officials put in pollution-control booms to block fuel from leaking into the water nearby.
Authorities told CNN that at least 200 passengers were on board the train when the derailment happened.
Passengers are being safely evacuated from the scene, according to the West Pierce Fire Department. At this point, there is no word on what caused the derailment.
Steilacoom is located about 45 miles south of Seattle.
The Associated Press contributed to this report.