Roswell, Georgia, police reportedly found unspecified drugs during a second search of Bobbi Kristina Brown's home, following an initial search Saturday when she was found unresponsive in a bathtub.

TMZ.com Tuesday said that according to family members, police returned to the suburban Atlanta town house during the weekend to formally search the home of the late pop star Whitney Houston's daughter with singer Bobby Brown. The website did not indicate whether legal pharmaceuticals or illegal drugs were found.

Investigators uncovered no drugs when police responded Saturday morning to a 911 call after Brown, 21, was found by her husband, Nick Gordon, and a friend. TMZ said police initially looked only for pertinent items that were immediately visible, and returned to do a more thorough search.

A police spokeswoman declined to confirm the report, telling Newsday, "The Roswell Police Department will not be providing any further information at this time on an open investigation."

After being taken by ambulance to a hospital in Roswell, Brown was transferred to one in Atlanta, Bobby Brown's attorney confirmed Monday. As of Tuesday, she remained in a medically induced coma.