A judge has tossed a portion of a lawsuit that alleged negligence against a cement company in the death of Rebecca Sedwick.

The 12-year-old Lakeland girl committed suicide after being bullied.

Sedwick jumped to her death from a silo at Cemex Construction near Lakeland in September 2013. Circuit Judge John Radabaugh wrote in a recent decision that the company wasn't at fault.

The child's mother Tricia Norman filed the lawsuit against the cement company and the Polk County School board last year. Her lawyer claimed the fence around the site was in disrepair, allowing unrestricted access.

The lawsuit against the school board remains, with mediation scheduled for June.

The family and the Polk County Sheriff's Office blame bullying and cyber bullying by the girl's former classmates for her suicide.

Information from the Associated Press was used in this report.