DURHAM, Maine — Two people died and two others were seriously injured Wednesday when a pickup truck crashed into the side of a dump truck and caught fire on Route 9.

Two of three occupants of the pickup truck, Malakai Cawood, 21, of Limington and Brendon Harthorn, 24, of Cornish, died at the scene, according to a release from Maine Department of Public Safety spokesman Stephen McCausland.

The third man in the 2003 Chevrolet pickup truck, Jeremy Reardon, 35, of Buxton, suffered multiple injuries and was taken by LifeFlight of Maine helicopter to Central Maine Medical Center in Lewiston. His condition was not available Wednesday afternoon.

The driver of the Larrabee Construction dump truck, 42-year-old Clifton Larrabee of Durham, was taken by Durham ambulance to Maine Medical Center in Portland, where he was listed in fair condition late Wednesday.

The three men in the pickup truck, all employees of Plowman Construction in Gorham, were headed to a job site in the area, McCausland said. Passers-by pulled them from inside the burning truck after the crash.

Durham Fire Chief William St. Michel said Wednesday he was first to arrive at the crash shortly after 7:15 a.m. He arrived to discover the pickup truck fully engulfed in flames.

The dump truck was on its side farther down the road, the chief said, and the driver had to be extricated from the vehicle.

Maine State Police troopers will conduct additional interviews before determining who was driving the pickup truck, McCausland said.

The Androscoggin County Sheriff’s Office, Freeport fire and Lisbon rescue assisted.

Route 9 was expected to reopen mid-afternoon on Wednesday.