Houston family provides latest on Bobbi Kristina Brown

Members of Whitney Houston's family have provided a new update on Bobbi Kristina Brown, the 21-year-old daughter of the Grammy-winning singer and Bobby Brown, who was found unresponsive in a bathtub of a townhouse in Roswell, Georgia, on Jan. 31.

The late singer's sister-in-law, Pat Houston, released a statement late Wednesday, saying, "On this -- the third anniversary of Whitney's passing, our family continues to stand together praying that Bobbi Kristina continues to fight for her life. We thank you again for your continued prayers of love and restoration and we thank you for respecting the family's privacy at this time."

Houston died on Feb. 11, 2012, after being found face-down and unresponsive in a bathtub at the Beverly Hilton hotel just before the Grammy Awards. Authorities said she accidentally drowned, and investigators listed heart disease and cocaine use as contributors to her death. She was 48.

Family members, including Bobby Brown and Cissy Houston, have been at the Atlanta hospital for days and held a public vigil for the aspiring singer/actress earlier this week.

Police have offered very few details about the case, noting there's an ongoing investigation.