Authorities say two suspects are dead and another is critically injured after a St. Louis area police pursuit ended in a crash.

KSDK-TV reports that St. Louis Police Chief John Hayden says gunfire was exchanged Wednesday night during the chase. But police believe the crash is what killed the two suspects.

It started in north St. Louis as officers in an unmarked vehicle were investigating stolen vehicles. Hayden says the officers tried to pull over a car that later was found to have drugs inside, but the driver sped off.

At an intersection, one suspect fired at officers, who fired back. Hayden says it ended in St. Louis County after the car hit a pickup truck, whose driver also was hurt. The surviving suspect had been shot in the leg.

More From AM 1050 KSIS