Police in Los Angeles have warned fans of the Fast And Furious star Paul Walker not to "burn rubber" near the spot where he was killed.
The caution was issued amid reports of people performing stunt manoeuvres on the stretch of road in Santa Clarita where the red Porsche the actor was in with his friend Roger Rodas crashed into a lamp post and tree.
A makeshift shrine has been created at the scene with both fans and Hollywood stars taking time to pay their tributes.
Officers said the crash happened in an area known as a "hot spot" for street racers.
The street forms a loop amid commercial buildings that is isolated from traffic, especially on weekends.
The Los Angeles County Sheriff's Department is still investigating the collision, but has already said speed was a factor.
At least one witness has suggested that 40-year-old Walker and Rodas, 38, may have been drag-style racing at the time, according to CNN, although others have rejected such accounts.
One fan was apparently seen drifting, an illegal technique in which the driver intentionally oversteers, causing the rear wheels to skid and making the car slide sideways.
"We sent deputies to the accident location this morning after we started getting reports of drivers burning rubber and spinning tyres at the site," said Santa Clarita sheriff's office spokesman Richard Cohen.
"So far I haven't had any reports of any drivers being cited or arrested ... but we have deputies there to stop that behaviour if it happens again."
The first Fast And The Furious movie was released in 2001. The series, with its focus on fast cars driven by tough guys, is one of Hollywood's most lucrative global franchises.
Meanwhile, video has been released of an interview Walker gave in November as one of his final films hits the screens this month.
The Associated Press talked to him on November 14 about his role in Hours, a drama set in New Orleans when Hurricane Katrina devastated the city.