Update: 9 a.m. Friday
The Montana Highway Patrol reports the driver died as a result of the crash. His name has not yet been released.
One man was taken to the hospital Thursday night with "serious injuries" after rolling his truck on Neibauer Road west of Billings, Montana Highway Patrol Trooper Eric Gardner said.
The westbound vehicle rolled near the intersection of 44th Street West and was seen leaking gas into the ditch, Gardner said.
Troopers and Yellowstone County sheriff's deputies responded.
No other occupants were in the vehicle.
The crash remains under investigation.