City firefighters say four people required advanced medical treatment and were transported to local hospitals, but their conditions aren’t considered life-threatening.
Firefighters were dispatched to a hazardous material call at the pecan processing plant around 5 a.m. Sunday.
The employees are part of a cleaning crew.
Firefighters ultimately determined the employees’ symptoms were a result of two gas-powered pressure washers that were used inside the enclosed building, which resulted in a buildup of carbon monoxide.