‘ER’ actress Mary Mara’s family await investigation results after apparent drowning, sister thinks it’s possible she slipped

Family members of “ER” actress Mary Mara, who police say died in a possible drowning, are awaiting more details from officials as an investigation into her death continues, a representative for the star said.

Mara’s sister thinks it’s possible that her sibling could have slipped as she was getting out of an upstate New York river over the weekend, but the family is awaiting official word from investigators, the rep said.

The 61-year-old Mara was found dead in St. Lawrence River at Cape Vincent on Sunday, according to New York State Police said.

“The preliminary investigation suggests the victim drowned while swimming,” state police said in an announcement Monday.

“The victim’s body showed no signs of foul play and was transported to the Jefferson County Medical Examiner’s Office pending an autopsy to determine an official cause of death.”

Mara, who was born in Syracuse, had a recurring role as Loretta Sweet on “ER,” and a leading role on the 1990s police drama series “Nash Bridges.”

The actress also appeared on episodes of “Law & Order,” “NYPD Blue” and “Criminal Minds.”