NORWOOD, Minn. (AP) _ A dump truck broadsided a compact car, killing five teen-agers in a fiery wreck, police said.

The cause of the accident Wednesday was under investigation.

''It's so burned up there just isn't much to know at this point,'' said State Patrol Lt. Robert Borne.

The car's gas tank apparently broke open on impact, leaking gasoline as the two vehicles skidded to a stop, officers said. The car burst into flames shortly after impact, they said.

Witnesses to the accident attempted to put out the flames with fire extinguishers, but were unsuccessful, authorities said.

The truck driver, Henry L. Chesley, 50, suffered minor injuries. He had the right of way at the time of the crash, police said.

The victims were identified by school officials as Emily Heim, 15, Jerid Smith, 13, and Andrew Norton, 13, all of Norwood, and Jennifer Wolter, 16, and Jeremy Wolter, 13, both of Hamburg.

Miss Wolter, who had had a driver's license only about three months, was at the wheel of the 1986 Dodge two-door compact, officials said.

Norwood is about 35 miles southwest of the Twin Cities.