Paul Walker official cause of death, trauma on impact and thermal injuries: 'Fast & Furious 7' production shut down indefinitely after tragic car crash

According to the L.A. County Coroner's Office, Paul Walker's tragic death was caused by combined effects of traumatic and thermal injuries sustained from the actor's deadly car crash in Southern California on Saturday, November 30.

The Coroner's Office announced Walker's official autopsy on Wednesday (Dec. 4).

The 40-year-old "Varsity Blues" star was the sole passenger in a Porsche GT driven by longtime friend Roger Rodas when the crash occurred. According to the report, Rodas died on impact and the fire did not contribute to his death.

Walker's traumatic injuries were sustained on impact and the burn injuries were a result of the fire that erupted after the explosion.

Both men were positively identified by dental records. Their deaths have been ruled an accident, and a toxicology report is expected in six to eight weeks.

Reports confirm that flames didn't erupt until 60-seconds after the initial crash impact.

Meanwhile, investigators looking into what caused the high-speed accident.

Also on Wednesday, Universal announced that "Fast and Furious 7" production would be shut down indefinitely following Walker's sudden death. The studio released this statement:

Right now, all of us at Universal are dedicated to providing support to Paul's immediate family and our extended Fast & Furious family of cast, crew and filmmakers.

At this time we feel it is our responsibility to shut down production on Fast & Furious 7 for a period of time so we can assess all options available to move forward with the franchise.

We are committed to keeping Fast & Furious fans informed, and we will provide further information to them when we have it. Until then, we know they join us in mourning the passing of our dear friend Paul Walker.

Before his passing, Walker and the "Fast and Furious" cast/crew were already filming movie scenes in Atlanta.

Family, friends, fans, and co-stars continue mourning the shocking death of Paul Walker. Stay tuned as more details still develop.