Medical problem possible in Hwy. 99 big rig crash

{A href=""}BAKERSFIELD, Calif. (KBAK/KBFX) A semitruck veered off Highway 99 and into some train tracks Tuesday morning. A witness reportedly found the driver behind the steering wheel afterward struggling the breathe.

Neither the truck nor the tracks sustained major damage in the crash near 7th Standard Road.

Firefighters reportedly arrived and performed CPR before the truck driver was taken to a hospital. The driver's name and condition were not released.

The California Highway Patrol is investigating the crash.