MIDLAND - Fire officials in Midland County are still looking for the cause of a big rig that caught fire on Thursday.
It happened around lunch time on Highway 191 and FM 1788.
Black clouds of smoke could be seen by anyone close to the area.
The driver managed to walk away and no one else was hurt.
A HAZMAT crew came to the scene where they discovered the big rig was not carrying oil but salt water.