A post-mortem examination has revealed that Paul Walker had died by impact and a fire in the car crash.
The Los Angeles County coroner claimed that the driver Roger Rodas, had died from impact injuries alone.
According to media reports, the 'Fast and Furious' star and Rodas died within seconds of the crash, the BBC reported.
Results of toxicology tests will not be available for several weeks.
Investigators continue to look into the cause of the single-car crash, but have said speed was believed to be a factor.