A car mechanic who was working at a Pennsylvania gas station was killed in an accidental overdose.
Car and truck drivers have also died in a fentanyl-related overdose, while a driver for a Pennsylvania convenience store was found dead of an overdose.
Fox News reported that Pennsylvania health officials are investigating whether a driver who was behind the wheel of a car was behind an overdose of fentanyl.
In July, Pennsylvania health inspectors announced that two auto-related deaths in Philadelphia could be linked to fentanyl.
A Pennsylvania man was found unresponsive at a gas station on July 12 after a heroin overdose.
He died a short time later, while the driver of the car was charged with two counts of homicide.
Officials are investigating the deaths.