TULSA, Oklahoma - The Oklahoma Highway Patrol says 79-year-old Skiatook man was killed when his pickup ran off a Tulsa County road and struck a concrete bridge railing Friday evening.

The driver was identified as Perry Newman.

Troopers said Newman's 2006 Dodge Dakota truck was southbound on Yale, just north of 116th Street North at the time.  

The crash happened just after 6:15 p.m.

Troopers told News On 6, they believe a medical condition may have led to the crash.