TULSA, OK -- Tulsa Police worked a pair of unrelated traffic crashes overnight in Tulsa.
A motorcycle wreck near U.S. Highway 169 and 61st Street around 2 a.m. Friday injured one person.
Tulsa Police say the motorcycle rider lost control and crashed on an entrance ramp to the highway.
He suffered serious head injuries and was taken to a Tulsa hospital.
Police say he had a helmet with him, but was not wearing it at the time of the accident.
In another accident, the driver of a car drove off the Broken Arrow Expressway at 31st Street and hit a storage building.
When Tulsa Police arrived on scene, officers couldn't find the driver. They believe the driver fled the scene after the accident.