On Friday reports surfaced that a change was made on the death certificate of actress Natalie Woods. Despite any changes made, the 1981 mysterious death of the actress is still an ongoing investigation since its reopening in 2011.

We have received many calls from the news media today asking about the status of the Natalie Wood death investigation case, Los Angeles County Sheriff's Captain Mike Parker said in a statement released on Friday. It remains an open and ongoing investigation. There are no further details.

The calls from the media came after TMZ reported Friday that the Los Angeles County Coroner's office had filed papers to change Natalie Wood's death certificate in late June. The coroner's office changed Wood's cause of death from accidental to undetermined.

Family members had revealed to TMZ that authorities called Friday to inform them of the change, telling them that the change was made in part because some of the bruises on Wood's body were inconsistent with death by accident.

Despite the new information found from the bruises on Wood's body, police could not say if the drowning of the actress was a result of an accident or foul play.

The Los Angeles Times reports that the coroner's office has a security hold on Wood's case.

It is an open investigation and we are cooperating fully with the Sheriff's Department, said Chief Coroner Craig Harvey in a statement. This department is making no comments at this time.

Natalie Wood's death case was reopened in 2011, two weeks before the 30th anniversary of her death. The case was reopened after several sources had come forward to provide more information about what happened that night, reports the LA Times.

Wood had been 43-years-old when she died on Nov. 28, 1981.The actress had been on a Yacht off Catalina Island with husband Robert Wagner, Brainstorm co-star Christopher Walken and yacht captain Dennis Davern. That night Wood had somehow ended up drowning in the water.

Numerous theories exist about Natalie Wood's death. Many of the theories revolve around alcohol since the coroner's office determined that she had consumed numerous glasses of wine before her death. MSNBC reports that one theory is that after a drunken argument between Wagner and Walken, Wood tried to leave the yacht on a rubber dinghy. Another theory is that the actress may have drowned after trying to secure a rubber dinghy that had been banging against the hull of the boat. Yacht captain Davern however wrote in his book Goodbye Natalie, Goodbye Splendour, that he believes Robert Wagner was responsible for her death.

When the Natalie Wood death case was reopened police denied that Wagner or Walken were suspects.