Two men and a woman were forced to spend the night on a ridge behind Tripler Army Medical Center.

Capt. James Todd, Honolulu Fire Department spokesman, said the hikers used a cell phone to call for help at 6:45 p.m. Thursday when they realized they were in trouble and couldn’t get down from the Moanalua Ridge Trail behind the Army hospital.

Two fire rescue personnel were dropped by the department’s helicopter on a ridge near the stranded hikers after the search resumed at 6:30 a.m. Friday. Temperatures at Tripler Army Medical Center dipped into the mid-60s overnight.

The rescue personnel escorted the hikers to an area where the helicopter airlifted them to the Army hospital’s landing zone at 9:45 a.m.

No injuries were reported.