Rescue crews worked 45 minutes to free two young people from a subcompact car involved in a three-vehicle collision that injured six people Saturday night.

West Valley police officer Fred Mattfeld said a Honda Civic was traveling west on 41st South at 1750 West when a sedan traveling east crossed the center line "for an unknown reason" and hit the subcompact head-on. A car following the Honda then slammed into it. The Honda spun around and was completely smashed. "They (rescue crews) had to cut the roof off completely and pull the steering wheel to free the people," Mattfeld said.The two occupants of the Honda were flown by air ambulance to LDS Hospital in critical condition. The four occupants of the other two cars were taken to Cottonwood and St. Mark's hospitals.

Officers investigating the 8:29 p.m. accident were trying to determine whether alcohol was involved in the collision that knotted traffic for two hours. Officers from West Valley police and the Salt Lake County sheriff's office responded to the accident, along with two helicopters, three ambulances, two fire trucks and two rescue units.

The identities of the victims were not released pending notification of relatives.