LOS ANGELES (CBS) — The mysterious death of actress Natalie Wood is being re-examined.

More details will be announced Friday at a press conference in Los Angeles.

Natalie Wood Wagner — married at the time for the second time to actor Robert Wagner — died on November 29, 1981.

She drowned — while boating with Wagner and actor Christopher Walken — off the Isthmus of Catalina Island. Her death was investigated at the time and ruled an accident by the Los Angeles County Coroner’s Office.

Wood’s sister, Lana, asked for the case to be re-opened last March.

When her body was found, Wood was wearing a parka and it was believed at the time she fell overboard and the parka filled with water and caused her to drown.

Sheriff’s Homicide Detectives said they were recently contacted by “persons who stated they had additional information about the Natalie Wood Wagner drowning.”

Due to the additional info, detectives have decided to re-open the case.

Anyone with information about this incident is encouraged to contact Los Angeles County Sheriff’s Department Homicide Lieutenant Corina at (323) 890-5641.

If you prefer to provide information Anonymously, you may call “Crime Stoppers” by dialing (800) 222-TIPS (8477), texting the letters TIPLA plus your tip to CRIMES (274637), or by using the website http;//lacrimestoppers.org