Harrison was found dead at about 4:20 on the 500 block of North First Street in Burbank, California, according to the Los Angeles County Medical Examiner-Coroner’s Office.
The cause of death was caused by a car crash, and the case is still under investigation.
Some media claimed that the erratic behaviour of the paparazzi chasing the car, as reported by the BBC, had contributed to the crash.
Harrison was a American actor and will be missed by many.