A truck smashed through the business' front doors, killing the driver.
It happened at around 11 a.m., at the Pizza Hut on Madison Avenue.
Local police say the deceased is 59-year-old Michael Morin of Oakland.
"He had parked his rig and was going into the Pizza Hut for lunch, and his truck started to roll," said Skowhegan Police Chief Ted Blais. "He ended up in front of the truck, which rolled over him, and through the front doors of the Pizza Hut."
The Maine State Police Commercial Truck Division is working to determine what exactly caused the truck to roll forward.
No one inside the Pizza Hut was injured.