ADA, OK - An Ada man is in critical condition at an Oklahoma City hospital after crashing into a semi Thursday morning.

It happened around 5:30 on state highway 3 about 15 miles west of Ada.

OHP say 35-Year-Old Leslie Graham was traveling west in a pickup when for an unknown reason he traveled over the center line and struck the driver's side of the semi.

A passenger with Graham and the driver of the Semi were not hurt.