BUNNELL, Fla. -- Joseph Robert Crawford, 55, died in a single-vehicle crash Thursday, according to the Florida Highway Patrol.

Crawford was driving his tractor trailer on Conservatory Drive when he ran partially off the right side of the road and struck a light pole. FHP said Crawford was driving at a low speed when the crash happened.

Based on the initial investigation by FHP, it appears Crawford may have died from medical causes which led to him running off the road.

The investigation in this accident is ongoing.