A U.S. Postal Service worker died in an accident in central Iowa Wednesday. Police say 64-year-old Lee Harry Spencer of Urbandale was found dead near a semi truck and trailer at the bulk mail facility in Urbandale.

Investigators says Spencer was sent to move the truck around about 6:30 Wednesday, and co-workers went looking for him an hour later when he failed to return. Police says the semi was found backed up against a light pole and still running with Spencer on the ground. Spencer apparently got out of the truck for some reason and was run over.

Investigators say the truck appeared to be working properly.