Whitney Houston's daughter is under investigation for underage gambling.

The late singer's 19-year-old child with entertainer Bobby Brown was caught on video enjoying slot machines in Las Vegas, Nevada on Saturday (19.05.12).

Now the Mgm Grand resort, where the illegal incident took place, has launched an internal investigation into the footage, as the legal age in the United States of America is 21 years old.

Bobbi Kristina was spotted inside the casino with her 22-year-old boyfriend and adopted brother, Nick Gordon.

A representative for the business told TMZ, they are now looking into the incident.

The Nevada Gaming Commission has also launched its own investigation into the footage.

Underage gambling is a misdemeanor in the state, punishable by up to six months in county jail or $1,000 fine by the individual involved. The MGM Grand could be subject to an even heftier fine.

She was in the party city to attend the Billboard Music Awards on Sunday (20.05.12) where she gave a touching speech about her mother who was found dead in her Los Angeles hotel room in February.

She said she felt ''blessed'' to have been part of the 'I Will Always Love You' hitmaker's life and thanked people for supporting her family through all of the singer's difficulties until her death as she accepted the Millennium Award.