ATLANTA (AP) — Celebrities are offering their support and prayers for Whitney Houston's daughter, who authorities say was found face down and unresponsive in a bathtub over the weekend in a suburban Atlanta townhome.

Police said 21-year-old Bobbi Kristina Brown was taken Saturday to a hospital in Roswell, Georgia.

La Toya Jackson is one of several celebrities who used Twitter to express her support. Jackson tweeted: "Let's All Send Love Light & Prayers to Bobbi Kristina Brown!"

Brown is the daughter of Houston and singer Bobby Brown.

Lindsey Harber, a spokeswoman at North Fulton Hospital where authorities say Houston's daughter was taken, declined to comment Sunday, saying she could not even confirm whether Brown was a patient.