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HOLLYWOOD (CBSMiami) – A South Florida substitute teacher has been arrested.

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That educator is accused of having a sexual relationship with a student.

28-year-old Roman Fondon Jr is facing charges of sexual assault on a minor.

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Hollywood Police say Fondon was working at Ben Gamla Charter High School when the relationship with a 15-year-old student took place.

Police say the girl’s mother found her diary, where she wrote about the relationship.

After reading it, the mother called authorities.

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Police are asking anyone who may have been a victim to call them.