Heather Payo tells WPXI-TV that her mother was driving from Clairton, Pa., to Magee-Womens Hospital of UPMC in Pittsburgh on Tuesday when Payo realized she wasn't going to arrive in time.
Payo says she ripped off her pants and delivered the infant, Jessica Rose, by reclining the front passenger seat. Heather Payo and her mother, Robin Payo, wrapped the baby in a flannel shirt before reaching the hospital.
Robin Payo says when they got to the hospital, someone said, "Oh, someone's having a baby." She says she replied, "No, we had a baby."
The next thing they know, Payo says, "Six guards and 20 people wearing scrubs came out."
Information from: WPXI-TV