A mother is demanding answers from a South Florida high school where video shows her daughter being attacked by another student.

Lawanna Cooper says her 17-year-old daughter was beaten by a classmate while other students watched on Feb. 9. The attack was caught on someone's cell phone video camera. The video shows other students laughing while they watched the beating.

Cooper says she asked officials at South Dade Senior High School in Homestead about the attack and where school security was at the time. She said they didn't know.

A 16-year-old girl has been charged with felony battery and was suspended for 10 days.

The arrest report says the school's surveillance cameras also captured the beating.

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