The daughter of Whitney Houston and Bobby Brown remains on life support after being found unresponsive in a bathtub

Credit: Landov

Family and loved ones gathered Monday night outside Atlanta to hold a candlelight vigil for Bobbi Kristina Brown, as she remains on life support after being found unresponsive in a bathtub at her home.

The “Shining a Light for Healing” vigil, held at the amphitheater at Riverdale Town Center in Riverdale, Georgia, was open to the public, with those in attendance rallying to support the only child of Whitney Houston and Bobby Brown in a burst of prayers, tears and song.

Bobbi Kristina’s uncle, Tommy Brown, as well as aunts Tina and Leaola, were present for the vigil, which began at 7 p.m. and lasted for an hour and a half. Riverdale mayor Evelyn Wynn-Dixon was also on hand, joining supporters in singing gospel hymns. Bobbi Kristina’s father and her grandmother Cissy Houston were not spotted at the vigil.

Close to 300 people came out to support Bobbi Kristina, 21, with attendees holding candles and flashing their cell phone lights.

Speaking on behalf of the family, Tommy Brown said: “I know she thanks all of y’all. Continue to pray for us. Remember when you wake up we should all pray for each other.”

“Well-wishes and my prayers are always with you Bobbi. Please wake up,” an attendee told PEOPLE.

“Nobody knows but God,” Mayor Wynn-Dixon said. “It’s not over until God says it’s over.”

Police have launched an investigation into the circumstances of Bobbi Kristina’s drowning, and a source told PEOPLE: “Foul play is begin investigated … including drug use and possibly cover-up to remove evidence from the crime scene.”

As lingering questions remain over the tragedy, Bobbi Kristina’s family continues to pray for a miracle.

“There has been no change” in her condition, a Brown family member told PEOPLE. “We are hoping that God will see fit to perform a miracle in her, so that he will get the glory.”

Reporting by ELISSA ROSEN

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