No drugs or alcohol were found in the bodies of "Fast & Furious" actor Paul Walker and his friend Roger Rodas after the fiery car crash that killed them in November, according to a coroner's report.
The report included an early account of the accident from the Los Angeles Sheriff's Department saying the Porsche Carrera GT driven by Rodas was traveling at "an unsafe speed, approximately 100+ mph."
But a sheriff's spokeswoman said the investigation into the accident has not been completed and there was no definitive finding on the car's speed.
Both deaths were ruled accidents. Walker died from "combined effects of traumatic and thermal injuries," and Rodas from "multiple traumatic injuries," the report said.
An investigation has found no evidence that the Porsche carrying US actor Paul Walker had mechanical problems before it crashed, an official has told the Associated Press.
"We're looking at speed and speed alone," a law enforcement official with knowledge of the investigation said, speaking on condition of anonymity.
The investigation also ruled out debris or other roadway conditions as causing the the 2005 Porsche Carrera GT in which the Fast & Furious star was a passenger to crash into a street light and tree.
The official said that the Porsche appeared to have negotiated a curve in the road just fine before crashing in an industrial park about 30 miles northwest of downtown Los Angeles.
"They were well out of the curve when they lost control," the official said.
Walker, 38, died alongside his friend and financial adviser Roger Rodas in the crash last month.
Hollywood Paul Walker, who was tragically killed in a single-car accident a fortnight ago, was farewelled yesterday in a small, private funeral.
Walker's ashes were reportedly placed at Forest Lawn Memorial Park in the Hollywood Hills.
The sister of Hollywood actor Paul Walker has denied that he died while drag racing, the Daily Mail reports.
Ashlie Walker, 37, told the paper that The Fast and the Furious star and his friend Roger Rodas, who was driving the Porsche they crashed in, were not involved in a speeding competition.
She said: "They were absolutely not racing, that's a complete lie. It hurts us when we hear these lies and it makes our grief worse and more painful.
"These are irresponsible allegations and people are trying to make out speed and racing was the reason for his death when it was just a terrible accident."
Speed is believed to have been a contributing factor in a single-car accident which is believed to have claimed the life of Fast and the Furious star Paul Walker.
Authorities are yet to formally identify the victims, but said speed was a factor in the crash, according to NBC News. The exact cause is still under investigation.
“We don’t know much about the cause of the collision other than that we know speed was at least a contributing factor,” Sergeant Brian Allen of the Santa Clarita Valley Sheriff’s Station told local media.
Fans have paid their respects at the site of the collision, after Walker's passing was confirmed on the actor's Facebook and Twitter feeds.
Actor Paul Walker died in a car crash after his friend lost control of a Porsche GT the pair were test driving, the Daily Mail reports. The car smashed into a pole and a tree before exploding according to witnesses. Photographs show the burnt out shell of the car.
A passerby posted footage of the aftermath of the accident, which occurred in Santa Clarita, north of Los Angeles.
The actor Vin Diesel has paid tribute to his Fast and the Furious co-star Paul Walker who has died in a car crash in California.
He posted a picture of the pair on his Instagram account with the caption: "Brother I will miss you very much. I am absolutely speechless. Heaven has gained a new Angel. Rest in peace."
Law enforcement is at the scene of a car crash, where Fast and the Furious actor Paul Walker is reported to have died.
"Sadly, I must confirm that Paul did pass away this afternoon in a car accident," Ame Van Iden, Walker's publicist, said in an email.