The Nevada Highway Patrol is investigating a fatal crash involving a pedestrian that occurred on I-80 east near Keystone Avenue on Tuesday night.

HP says a blue 2003 Chrysler minivan was heading east in the middle lane when a pedestrian darted out from the center median into the travel lanes. 

The pedestrian, a man about 30-40 years old, died on scene. 

NHP says it's unclear whether the unidentified man was under the influence of drugs or alcohol.

The driver is cooperating with the investigation.

At this time, it is unknown why the pedestrian was in the area.

If you witnessed this incident, or have any information regarding this collision, contact Trooper Karen Garretson of the Nevada Highway Patrol Multi-Disciplinary Investigation and Reconstruction Team (M.I.R.T.) at 775-687-9618 or  reference NHP case #170900485