BOISE, Idaho -

 Idaho State Police say a 54-year-old motorist pulled over by a trooper and given a verbal warning died shortly after when his vehicle crashed about half a mile away.

Police say Gerardo Pena Garza of Othello, Washington, died Wednesday after being pulled over on Interstate 84 near Caldwell in southwest Idaho at about 2 p.m.

Police say Garza re-entered traffic heading east in a 2004 Dodge Caravan in the far right lane.

The same trooper who issued the warning saw Garza's vehicle turn left and cross the median into oncoming traffic. The vehicle went off the north side of the interstate and stopped in a marshy area.

The trooper found Garza unconscious.

Emergency responders transported Garza to a Caldwell hospital where he was pronounced dead.

Police are investigating the crash.