The police officers who rescued 18-month-old Lily Groesbeck from her mother's car -- found flipped upside down in an icy Spanish Fork, Utah, river -- can't quite make sense of what they heard right before reaching the car, as reported by Fox News Insider. 

Lynn Groesbeck, Lily's 25-year-old mother, had crashed the vehicle 14 hours prior to police arriving at the scene. A fisherman came across the car and alerted authorities, but Lynn had already passed away hours before their arrival, as reported by Fox. After arriving at the scene, four police officers heard something chilling as they rushed down to the vehicle; it was a woman's voice calling out for help. 

“We’ve gotten together and just talk about it and all four of us can swear that we heard somebody inside the car saying, ‘Help,’” Officer Jared Warner told Fox. The officers say that it was this voice and its pleas for help that caused them to pick up steam in their attempts to flip the overturned car. Officer Bryan Dewitt says of flipping the car, "How, I don't know, whether it's adrenaline or what. But it was incredible." 

It wasn't until after the car had been righted that the officers realized that Lynn had already passed and that 18-month-old Lily was still alive, according to Fox. It was this realization that left the officers thoroughly confused; all four agreed that the voice they heard was far too mature to be that of an 18-month-old baby. Though in total agreement about what they heard, the officers have absolutely no idea who it was that was calling out. 

Lily was rushed to the hospital and placed in the care of other members of her family, as reported by Fox, who said that, despite all she'd been through, she'd be all right.