One person was seriously injured Tuesday when their car was pinned beneath the cab of a tractor trailer.

Public Safety spokesman Steve McCausland says the car had been involved in an earlier crash on the Maine Turnpike in Saco when it struck a guardrail and came to rest in the roadway. The car was then struck by an 18-wheeler and the impact drove the car underneath the truck's cab. The car's driver, 22-year-old Abdirahman Mohamed of Portland, was pinned inside as the two vehicles came to rest, just off the breakdown lane. 46-year-old Mark Pierce of Standish was driving the tractor for Hutchins Trucking of South Portland that was hauling a loaded Hannaford Supermarket trailer. He wasn't hurt in the accident.

Wreckers were used to lift the truck off the car so fire department personnel could use extrication equipment and free the driver. Police say it was raining when the accident happened at around 5 a.m., at the exit 36 southbound ramp. That exit ramp was closed for about 3 1/2 hours.