Police in Utah are mystified by a voice which called for help from a submerged car. Four officers clearly remember hearing a call, “help me”, from inside the car which intensified their rescue efforts.

However, when they finally managed to rescue the occupants of the vehicle, only 18 month old Lily Groesbeck had survived – just barely. Her 25-year-old mother died instantly when the vehicle flipped off the road and into an icy river on Friday night.

The toddler was strapped into her car seat, and survived 14 hours hanging upside down over the freezing water. She was unconscious when the rescuers got her out of the car, but was revived through CPR.

The car was spotted by a fisherman on Saturday morning who called emergency services

The car wreck wasn’t visible from the road. Seven of the rescuers who helped get the car out of the river were later treated for hypothermia.

Subscribe to our Free Daily All4Women Newsletter to enter

“The four of us heard a distinct voice coming from the car,” Officer Jared Warner told CNN. “To me, it didn’t sound like a child’s voice.” To this day, none of them know where the mystery voice came from.

According to family members, Lily has recovered well from the trauma. She is watching children’s shows on TV and playing with her grandfather.