Evacuations ordered after train carrying crude oil derails north of Seattle Crews are continuing to work on cleanup after six tanker train cars derailed in the Custer area of Whatcom County and caught fire Tuesday. No one was injured. Author: KING 5 Staff Updated: 6:58 PM PST December 23, 2020 WHATCOM COUNTY, Wash. — Federal investigators are assisting local authorities in investigating what caused a tanker train hauling crude oil to derail in Whatcom County Tuesday morning. There have been no reported injuries. Cleanup continued Wednesday as crews work to clear the train cars, debris, and crude oil that leaked from the cars. Officials said it could take months to get the area fully cleaned up.