PUEBLO, COLO. -- A 53-year-old Pueblo man died after crashing his motorcycle on Highway 50 early Sunday morning.

Colorado State Patrol officials said 53-year-old Frank Luna lost control of his motorcycle in what they suspect is an alcohol-related crash.

Troopers said Luna's 2003 Honda VTX drifted onto the shoulder of the highway around 12:50 a.m. while going east on Highway 50, about a mile west of Pueblo. The bike flipped onto its right side and ejected Luna.

Luna crashed into a road sign and died at the scene. He was not wearing a helmet.

Troopers said toxicology results are not available at this time.