A 5-year-old and an adult were killed in a 2-vehicle crash that caused massive backups on Interstate 95 in Wells on Friday afternoon.
Maine State Police said the accident occurred around 2:30 p.m. and involved a tractor trailer and a car.
Earl Gray, a 57-year-old Waterboro man, and 5-year-old Wyatt Frost of Lyman were killed. Both were in the car.
According to police, Gray volunteered as a driver for York County Community Action. He had provided Frost with transportation for about two years.
Police say 56-year-old John Kamau of Lowell, Massachusetts, who was delivering mail from New Hampshire to Portland, Maine, was driving the box truck that struck Gray's car and knocked it into another truck in front of it.
Kamau and the other truck driver were slightly injured but not hospitalized.
The accident shut down all three northbound lanes, causing an 8-mile backup that lasted more than four hours. Police said many vehicles were stuck in traffic for so long that they ran out of gas and became disabled.
The wreckage had been removed as of 7 p.m., and state police were working to assist any stranded motorists.
In an unrelated accident earlier, police say an erratic driver was thrown from a vehicle after hitting a guardrail in Kennebunk. That person was critically hurt. The traffic was slowing down when the deadly Wells crash took place.