U.S. police have found no new evidence that the 1981 death of Hollywood actress Natalie Wood was anything other than an accident, two months after reopening the case.

Los Angeles County Sheriff's Department detectives told the Los Angeles Times they have no evidence the cause of Wood's mysterious death in a sailing accident is a homicide.

The controversial decision to reopen the case was made in November, after police said several sources had come forward to provide more information about what happened.

Since reopening the case, detectives have reviewed the entire case file, travelled to Hawaii to inspect the boat she fell from and re-interviewed witnesses and others, without finding new evidence, according to the L.A. Times.

"At this point, it is an accidental death," said William McSweeney, the sheriff's chief of detectives. "Nothing has been discovered to suggest changing that at this time."

McSweeney said the case will be set aside once detectives finish their work, though the Sheriff's Department typically doesn't officially close cold cases when there is no arrest.

Wood died off the shores of Southern California on Nov. 29, 1981. She drowned after spending several hours drinking on Catalina Island and a yacht with husband Robert Wagner, fellow actor Christopher Walken and yacht captain Dennis Davern.

Davern co-wrote a book on Wood's death three years ago and has said there was a fight that night that he was told not to report. He also said Wagner was reluctant to call the coast guard when Wood was discovered to be missing. Wood was found drowned about a mile away from the yacht.

Davern and Wood's sister, Lana, had lobbied to have the case reopened.

Wood, an Oscar nominee known for roles in West Side Story and Rebel Without a Cause, was 43 when she died. She and Wagner, star of TV's Hart to Hart, were married twice: first in 1957, before divorcing six years later, and again in 1972.