Leolah Brown, Bobby Brown’ sister, is speaking out for the first time since Whitney Houston’s death, defending her brother and sending a warning to her niece Bobbi Kristina.

Leolah Brown came to Bobby Brown’s defense during an interview that aired last night on Access Hollywood.

Leolah Brown says that she does not think Whitney Houston’s death was an accident.

Bobby Brown’ sister also expressed concern for her niece, Bobbi Kristina.

There have been several reports since Whitney Houston’s passing that Bobbi Kristina is emotionally unstable, and Leolah Brown believes that her niece is in danger.

“I am concerned about my niece Bobbi Kristina, yes,” Leolah Brown told Access Hollywood of her 18-year-old niece, who she refers to as “Krissy.”

“Krissy is not safe right now. I want to say to Krissy that it’s very, very, very important that she does not trust anybody at this time. Anybody except her father, her grandmother Cissy and myself. And I mean that.”

“Right now is the time to just really shut the door,” Leolah Brown continued.

Leolah Brown, Bobby Brown’ sister, is speaking out for the first time since Whitney Houston’s death, defending her brother and sending a warning to her niece Bobbi Kristina

Leolah Brown and her attorney, Reginald Mason, remained unspecific about who may try to harm Krissy.

“There are persons that possibly would want to take advantage of Bobbi Kristina’s fragile state of mind,” Reginald Mason claimed.

Leolah Brown claims her brother Bobby is not doing well, but says he is not to blame for Whitney Houston’s demise.

“Bobby has nothing, nothing at all to do with Whitney’s death,” Leolah Brown told Access Hollywood.

While awaiting toxicology results to determine what killed the singer, Leolah Brown told Access that she has reached out to the Beverly Hills Police Department to make sure they do a thorough investigation.

“I believe Whitney’s death was not accidental. No,” Leolah Brown claimed.

“My attorney has advised me not to get into that at all,” Leolah Brown told Access Hollywood.

“But, it’s very important to know that she did not just pass away like that. No. And if it’s the last thing that I do, I’m going to find out what truly happened to my sister.”