Chris Brown has been accused of angrily snatching some girl's iPhone outside a nightclub in Miami this weekend ... and driving off with it -- law enforcement tells TMZ.

A rep for the Miami Beach PD tells TMZ, 24-year-old Christal Spann filed a police report Sunday for "robbery by snatching" -- claiming she followed Chris and rapper Tyga out of Cameo nightclub early in the morning (see photo above) ... and snapped a picture of Chris getting into his Bentley.

Christal told cops ... Chris flipped out when he saw her camera phone-- then grabbed it through the car window, saying, "Bitch, you're not gonna put that on the Internet."

According to the police report, Chris then rolled up his window and drove off -- $500 iPhone in hand.

A rep for the Miami Beach PD tells us, no arrests have been made and no warrant has been issued yet. We're told the incident is currently under investigation.

BTW, Chris is still on probation for the Rihanna beating and if he's arrested he could be thrown in jail on a probation violation.

Calls to Chris' reps were not returned.
See also Rihanna & Chris Brown -- Friends SCRAMBLING to Stop Blossoming RelationshipRihanna and Chris Brown Remixes -- A Real One-Two PunchRihanna & Chris Brown -- TOGETHER Again ... on 2 New Songs

Chris Brown has been accused of angrily snatching some girl's iPhone outside a nightclub in Miami this weekend ... and driving off with it -- law enforcement tells TMZ.

A rep for the Miami Beach PD tells TMZ, 24-year-old Christal Spann filed a police report Sunday for "robbery by snatching" -- claiming she followed Chris and rapper Tyga out of Cameo nightclub early in the morning (see photo above) ... and snapped a picture of Chris getting into his Bentley.

Christal told cops ... Chris flipped out when he saw her camera phone-- then grabbed it through the car window, saying, "Bitch, you're not gonna put that on the Internet."

According to the police report, Chris then rolled up his window and drove off -- $500 iPhone in hand.

A rep for the Miami Beach PD tells us, no arrests have been made and no warrant has been issued yet. We're told the incident is currently under investigation.

BTW, Chris is still on probation for the Rihanna beating and if he's arrested he could be thrown in jail on a probation violation.

Calls to Chris' reps were not returned.
See also Rihanna & Chris Brown -- Friends SCRAMBLING to Stop Blossoming RelationshipRihanna and Chris Brown Remixes -- A Real One-Two PunchRihanna & Chris Brown -- TOGETHER Again ... on 2 New Songs

Dr. Conrad Murray hasn't even COME CLOSE to paying for the crime of killing Michael Jackson ... and should NOT be granted early release as he's requested ... this according to La Toya.

LTJ was at LAX yesterday when we asked what she thought of Murray's recent request to be freed from jail early while he works on his appeal ... claiming he doesn't pose a threat to society.

La Toya's response -- "Absolutely NOT ... my brother's not free."

Bonus Moment -- We asked La Toya about her days with the Psychic Friends Network ... and she TOTALLY DROPPED A PSYCHIC BOMBSHELL!!! Check out the clip.

See also Dr. Conrad Murray -- I Didn't Kill Michael Jackson, Stress DidD.A. -- Conrad Murray Is a Danger To SocietyDr. Conrad Murray -- Jailmates with Janet Jackson's Ex ... Michael's Brother-in-Law

Snot your typical restraining order ... "Real Housewives of Beverly Hills" star Dr. Paul Nassif claims a dissatisfied nose job patient has been harassing and threatening him to the point the cops are now involved and Nassif is asking for court protection.

Nassif -- a cosmetic surgeon who is married to "Housewives" star Adrienne Maloof -- performed all sorts of schnoz work on