CUMBERLAND, Maine — A truck driver from Jackson was involved in a wreck on Interstate 95 in Cumberland that jammed traffic in Portland for three hours Monday afternoon.

Meldon Gibbs, 58, of Jackson was operating a tractor trailer rig in the southbound lane in Cumberland near the Falmouth town line when a car ahead of him veered into a guardrail and then struck his rig. The truck then collided with a third car. None of the drivers was injured, according to Department of Public Safety spokesman Steve McCausland.

Gibbs was hauling a load of mulch when the 4 p.m. crash occurred. After the collision, the truck ended up on its side in the median. The accident backed up traffic for miles between Yarmouth and Portland. Traffic in both the south and northbound lanes was reduced to one lane as the evening commute began and was backed up into Portland.

State Trooper Larry Rose said the driver who caused the crash was Jolie Sandora, 38, of Portland. The other car involved was driven by Nina Orchard, 20, of Dover, New Hampshire. Witnesses said Sandora appeared to be reaching for something inside her car as it veered into the guardrail. Some reports indicated she was talking on her cell phone and may have dropped it, but Rose said an examination of the phone showed that no calls were taking place at the time of the crash. Sandora’s car then collided with the truck, which in turn hit Orchard’s car.

Three other troopers assisted Rose at the crash site, which was cleared at about 7 p.m. No one was charged, but Rose said Sandora was “distracted while behind the wheel.”