IRVING, Texas – The four people who led Irving police on a high-speed chase in a stolen car before a deadly crash have been identified.

The Dallas Medical Examiner identified the dead as 21-year-old Sabria Lacey, 21-year-old Anthony Lisbon, 22-year-old DeAvion Aubert and 21-year-old Robert Gowans Jr.

Irving police say the chase began when they spotted a stolen car around 2 a.m. Thursday.

READ MORE: Irving police chase ends in Downtown Dallas crash; 4 dead, deputy injured

The driver refused to pull over, according to police, and led officers on a chase into Downtown Dallas before losing control on the ramp from I-35 to Woodall Rodgers.

In Irving police dash camera video, sparks fly as the vehicle hits the guardrail before falling onto the road below and catching fire.

A Dallas County sheriff’s deputy was also injured in the crash when a light pole fell onto his squad car.

Irving police and the Dallas County Sheriff’s Office are investigating the crash.