"All I can say is pray for our baby Maddie," Jamie Lynn's dad, Jamie Spears, tells ET.
According to TMZ, Maddie was underwater for several minutes and unconscious after an off-road vehicle she was riding flipped over. She was then airlifted to a nearby hospital.
However, a rep for Britney Spears tells ET, "The details the media are reporting surrounding the incident regarding Jamie Lynn's daughter Maddie are incorrect. Right now the Spears family asks that everyone respect their privacy during this time and appreciates all the prayers and support for their family."
ET sat down with Jamie Lynn at her home in Kentwood, Louisiana, last June, where she opened up about becoming a teen mom, and how her and Maddie's lives have changed since she settled down with her new husband, Jamie Watson, in 2014.
"We are very strict on what she eats and different things like that, but my husband is very strict on most everything," she said. "I would say I am cool at times, but [Maddie] is getting to that age now where if I want to dance around with her and friends, that is not that cool anymore. She is kind of like, 'Mom! Don't do that,' which is really weird for me because I used to love that!"