The truck driver was notified of a fire around his right rear tire by another truck driver via CB radio shortly before 5:30 a.m., Westport fire officials said.
The FedEx driver pulled over to the side and attempted to put out the fire, but the tire exploded and the fire extended to the trailer portion and storage area of the truck, fire officials said.
Westport firefighters extinguished the blaze. They were assisted by Fairfield firefighters in removing packages from the trailer and making sure the fire was out.
The last firefighters cleared the scene at 6:22 a.m.
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