Published: Jul 02, 2012 9:07 PM EDT

MIAMI (AP) - In a lawsuit filed against a Miami charter school, a woman claims her 7-year-old son was bullied and sexually assaulted by an 11-year-old boy.
    
The mother and her attorney are holding a news conference Monday afternoon in Miami.
    
In a media release, attorney Jeff Herman says the incidents began in 2011 while the child rode the Carmen Alvarez Bus Service to Downtown Miami Charter School. The mother notified the driver that the driver forced her son to perform oral sex while on the bus.
    
Herman says the bus driver took no action. The mother then contacted Principal Rebecca Dinda, who assured her the abuse would stop. But he says the sexual abuse continued and the boy eventually attempted suicide.
    
Dinda didn't immediately respond to an email from The Associated Press.

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