NEW YORK -- The cause and manner of Michelle Trachtenberg's death are undetermined, according to the New York City Office of the Chief Medical Examiner.

Trachtenberg's family objected to an autopsy for religious reasons so the medical examiner's office was unable to determine how she died.

Because there is no suspicion of foul play or criminality associated with the actress's death, the medical examiner did not overrule the family's objection and limited the investigation to an external examination.

Trachtenberg, 39, was found dead in her apartment near Columbus Circle on Wednesday morning by her mother.

The former "Gossip Girl" star had recently undergone a liver transplant and may have suffered complications, police sources told ABC News.

Trachtenberg, a New York City native, mad

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