ATLANTA - DeKalb police are investigating whether street racing is to blame for a wreck that left two people dead on Interstate 285.

Witnesses said a Corvette and a Mustang appeared to be racing south of LaVista Road when one of the cars slammed into a guardrail around 9 p.m. Tuesday.

Two people in the Corvette were killed.

Two others in an SUV were rushed to the hospital with critical injuries.

Police identified the dead as 20-year-old Brandon Phillips, the driver, and 18-year-old Jordan Makanani.

Authorities have located the driver of the Mustang who they believe witnessed the accident.