The accident happened around 4 p.m. Wednesday on Route 87 just south of Pittsboro.
Authorities said the truck later slammed into the the back of an SUV, skidded off the road, and hit a mini-van.
A school bus driver saw the approaching truck through her rear-view mirror and was able to turn into a nearby housing development to avoid being involved in the accident.
Six people were taken to UNC Hospitals with minor injuries. Four have been treated and released. Mildred Walke, 61, is listed in good condition and Nina Field, 78, is listed in fair condition.
Authorities have charged the driver of the logging truck with failure to reduce speed to avoid an accident.
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