SPEARFISH, S.D. -

The South Dakota Highway Patrol says a 30-year-old man has died in a one-vehicle crash west of Spearfish.

Authorities say the man died after he lost control of a pickup truck he was driving early Wednesday. The pickup rolled after sliding into the ditch.

The Highway Patrol says the driver was ejected from the truck and died from his injuries. A 27-year-old female passenger received serious injuries that weren't a threat to her life.

The Highway Patrol is investigating the crash.