LOS ANGELES -- Montana Fishburne -- actor Laurence Fishburne's 19-year-old daughter -- has voluntarily checked herself into an inpatient facility that specializes in mental illness, anger management and behavioral problems, according to TMZ.

On her twitter page last night, the teenager tweeted, "Hmm…big decision 2 make."

She was apparently tweeting while she was watching the MTV VMAs, saying, "I need to be packing while I watch this…f**k!!! But it's slowing me down," she wrote.

While she didn't say exactly say what she was packing for, according to reports, she checked herself into an unidentified Southern California facility where she will spend the next 30 days.

Laurence reportedly stopped talking to his daughter after she released a sex tape a few months ago called Montana Fishburne Exposed.

The teenager is currently facing assault charges for allegedly beating up her boyfriend's ex-girlfriend over her statements that the two were still together behind Montana's back.

Montana has not tweeted since last night.