Preliminary results from an autopsy on California visitor Nola “Becky” Thompson has found no signs of foul play, the Kauai Police Department said today.

The department said her body has no injuries that would have contributed to her death.

Blood toxicology and tissue examinations and pending, along with the final determination of the cause of death, police said.

Thompson’s body was found Friday in a stream bed near a waterfall west of Wailua, Kauai.

Friends staying at a Kauai hotel said Thompson appeared to be agitated. Thompson, from Rancho Santa Margarita, Calif., had recently broken up with her boyfriend of five years.

Her rental car was found Thursday in east Kauai.