DALLAS COUNTY, Iowa — [KCCI] – A 53-year-old man died Tuesday night, after his motorcycle crashed on a Dallas County highway while going around a curve. The Dallas County Sheriff’s Office says law enforcement were called to a crash in the area of Old Highway 6 and L Avenue at around 8:24 p.m. Tuesday.

First responders found a motorcycle that was involved in a crash and an unconscious driver, identified as Douglas Randolph, of Adel. Authorities performed CPR, but Randolph died at the scene.

Investigators say the motorcycle appears to have lost control going around a curve. It left the roadway and entered a ditch. Investigators say a high rate of speed was a contributing factor in the crash.