A Seymour man was killed Monday night in a one-vehicle crash in Jackson County. Indiana State Police say that troopers were called US 31 near Commiskey Pike at approximately 11 p.m.

ISP says the initial investigation by Trooper Korry Clark indicated that a car driven by 27-year-old Robert Robbins was traveling north on US 31 near Commiskey Pike, approaching a sharp curve near the I-65 overpass. Police say that Robbins was unable to navigate the curve and his vehicle left the roadway and struck a guardrail. ISP says that Robbins was thrown from the vehicle and pronounced dead at the scene by Jackson County Coroner Michael Bobb.

Investigators say that speed and alcohol are both believed to be contributing factors in the crash. They add that Robbins was not wearing his seat-belt.

The investigation is ongoing.