Los Angeles, Dec 17 (IANS): Actor Paul Walker's death certificate, which reads that he died from "combined effects of traumatic and thermal injuries", has been released.

As per the death certificate, Walker, 40, did not die from the impact of the crash alone. He was also charred to death in the resulting fire, reports tmz.com.

The "Fast & Furious" star died in a crash after a charity car show in Santa Clarita, California Nov 30. His friend Roger Rodas was also with him in the car.

The L.A. County Coroner released Walker's cause of death earlier this month, according to which Rodas also died from "multiple traumatic injuries", but the coroner did not list burns as a factor in his death.

The cause of the accident is still under investigation, but officials suspect plastic bumps in the road may have caused Rodas to lose control.

Walker's funeral was held Dec 14 at Forest Lawn Cemetery here. The late actor's close friends and family gathered to say goodbye.