Following reports that Whitney Houston's family wants her daughter Bobbi Kristina Brown to enter rehab after the funeral, reports are that Bobbi Kristina disappeared after the service and was getting high. Houston's funeral service was held at her childhood church, New Hope Baptist, in Newark, N.J. on Saturday. The singer was buried on Sunday, next to her father at a cemetery in New Jersey.

Sources close to the family reportedly told The Daily Beast that Bobbi Kristina disappeared for several hours after her mother's funeral and was found using drugs.

The report noted that as Houston's body was about to be transported for burial at the Fairview Cemetery in Westfield, her family was panicking and trying to find 18-year-old Bobbi Kristina. Bobbi Kristina is Houston's only child with ex-husband Bobby Brown. After her mother's death on Feb. 11, Bobbi Kristina suffered and emotional breakdown the day after and was taken to a Los Angeles hospital. She was treated for stress and anxiety and released.

Everyone was freaking out and calling Bobbi Kristina's cell, a source, who is said to be a longtime family friend, told The Daily Beast. It was so much commotion and activity after the funeral that Bobbi Kristina just slipped away. Ms. Cissy [Houston, Whitney's mother] was beside herself.

A spokesperson for the Houston family told The Daily Beast that there was some confusion about Bobbi Kristina's whereabouts last night for a short time, but she's OK.

She needed some time alone, the spokesperson said, adding that Bobbi Kristina isn't on drugs and is emotionally fragile at this time. She is going through a very hard time, as you can expect.

Houston died in a bathtub in her hotel suite at the Beverly Hilton Hotel. A cause of death has not yet been established and results from toxicology tests could take weeks.

A family friend told The Daily Beast that Cissy and others won't admit out loud that Bobbi Kristina has a drug problem.

But they know it and have been trying to keep her straight even before Whitney passed, the family friend said. But losing your mother and the life you're accustomed to all in one day is enough to send anybody off the deep end.

One of the sources said Bobbi Kristina reportedly entered rehab for a drug problem early last year. The Daily Beast reported that the Houston family spokesperson would not comment on that.

Reports were that Bobbi Kristina held up well at her mother's funeral on Saturday.

She had the people she loved and love her the most around, one of the sources told The Daily Beast. Ms. Cissy was holding on tight and watching her every move.