Britney Spears Speaks Out on Niece Maddie's Hospitalization: 'Need All the Prayers and Wishes'

8-year-old Maddie was involved in a serious ATV accident over the weekend.

Britney Spears is hoping and praying for her niece's recovery.

The 35-year-old singer took to Twitter on Monday to ask fans, "Need all the wishes and prayers for my niece," after Jamie Lynn Spears' 8-year-old daughter, Maddie, was involved in a terrible ATV accident over the weekend.

RELATED: Jamie Lynn Spears' Daughter Maddie Was Submerged in Pond for 2 Minutes After ATV Crash, Police Report Says

According to the police report obtained by ET, shortly before 3 p.m. on Sunday, Maddie was steering her ATV to avoid running over a drainage ditch near a pond on the family property in Louisiana when she "overcorrected," and caused the vehicle to enter the pond.

"The child was trapped and secured by the seatbelt and the ATV's safety netting," the report reads. "Within two minutes, Acadian Ambulance Services arrived and assisted in freeing the child from the cold waters."

Maddie is currently in stable but critical condition.

EXCLUSIVE: Jamie Lynn Spears Gets Candid About Having More Kids and Battling Mom Guilt - 'That Is the Hardest Part'

"Right now the Spears family asks that everyone respect their privacy during this time and appreciates all the prayers and support for their family," Britney's rep tells ET.

Watch the video below for more on Maddie's accident.