Whitney Houston GRAMMYS020908_168.jpg The National Enquirer is reporting some terrifying news - during an argument with her mother, Whitney Houston's daughter Bobbi Kristina tried to stab the legendary songbird before attempting to turn the knife on herself!

According to the mag, the confrontation touched off during an argument which took place a few days before Kristina's 15th birthday. Family friend Ann Davis wouldn't give out too many details, but confirmed that Kristina "tried to stab" her mother with a razor, then started trying to cut herself.

Davis goes on to claim that the incident was touched off over Kristina's reluctance to live with Whitney.

Fortunately, it sounds like the girl's getting some help - according to other sources who spoke to the mag, Kristina landed in at Atlanta psychiatric ward as a result of her actions.

Houston's reps declined to comment.

We'll let you know anything else as soon as we hear it!