Fire investigators continue to probe the scene of the blaze that destroyed Fort Clatsop Monday night.

No cause has been identified for the fire, which was first reported at 10:30 p.m.

Investigators are still seeking information about a truck seen leaving the scene as the first fire crews arrived. The vehicle is described as a newer model Chevrolet pickup with a "Z71" emblem on the rear fender. Anyone with information about the truck or other information about the fire is asked to call the Oregon State Police Arson hotline at (800) 452-7888.