The Honolulu Medical Examiner’s Office has identified a 34-year-old Utah woman who died Sunday after being struck by falling rocks while hiking in Kaaawa as Jenna S. Johns.

The cause of death was multiple blunt force injuries. Sources have said Johns of Salt Lake City was six months pregnant.

The medical examiner’s office declined to confirm whether she was pregnant at the time of her death.

Firefighters responded to a call of an injured hiker, later identified as Johns, at Makaua Hidden Valley Trail shortly after 1 p.m. Sunday. She was hiking with her husband when she was struck by falling rocks.

About a half-hour later, firefighters found her unconscious and without a pulse. The Honolulu Fire Department’s Air 1 helicopter airlifted her to a landing zone at Swanzy Beach Park where Emergency Medical Services awaited her arrival.

Johns was later pronounced dead.