It happened just before ten Monday morning on Stoystown Road.
"I looked up and I just saw that train plow through the truck," said Robert Ogline, owner of Somerset Milling Company. "Mail just flew everywhere!"
State Police said 63-year old Gaines Sims; the driver of the truck did not stop before the white line when the railroad lights were flashing. The trained owned by CSX did not have time to stop before crashing into the truck.
"I heard the train coming and when I heard the bang, I knew what it was right away," said Patricia Miller who lives across the street.
The truck was carrying standard mail and was on its way to Pittsburgh.
"Standard mail consist of advertising and bulk mail there was no priority, first class or express mail," said Wendy Hudak, Post Office Manager, Pittsburgh.
Sims is facing a number of traffic violations.