SPANSIH FORK, Utah - Four Utah County teenagers were killed when their car collided with a concrete barrier along Emma Park Road in Spanish Fork. Investigators believe the car was speeding at about 100 miles an hour when it smashed into the barrier around 1:30 a.m. Sunday. Another car spotted the car a few hours later. The crash involved two 16-year-old boys, a 19-year-old boy and a 13-year-old girl. The victims all suffered internal trauma and authorities believe three victims died instantly. The driver survived the initial impact but later died from his injuries.

FOX 13's Katy Carlyle reports.

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