Cause of a Hilo woman's death has been deferred pending results from toxicology analysis following an autopsy performed Friday, according to Big Island police.

Roberta June Whitehouse's body was found Wednesday in a Pu'ueo apartment, where she was a house guest, police said. Whitehouse, 51, had no permanent local address, police said.

A preliminary examination of Whitehouse at Hilo Medical Center revealed no outward signs of trauma, police said.

Police arrested a woman, 48, for investigation of second-degree murder but she was later released pending further investigation.