SANFORD, Fla. -- A seventh grade Seminole County teacher was arrested on Friday on 50 counts of possession of child pornography after police said he had numerous photos of children engaged in oral sex and sexual intercourse on his home computer.

Robert Howard Williams, 62, of Sanford, was charged after investigators said they received several complaints about the Millennium Middle School teacher's online activity, including his MySpace account.

According to a Seminole County Sheriff's Office report, a 19-year-old former student was concerned with the numerous "friends" on Williams' MySpace account who appeared to be middle-school age girls.

Investigators contacted Williams at his Sanford residence and said they discovered the photos on his computer. As of Friday afternoon, investigators had not identified any of Williams' students in the photos, according to the report.

School board officials were notified of the allegations and are assisting the Seminole County Sheriff's Office with the investigation, the report stated.

Williams was booked into the John E. Polk Correctional Facility on $150,000 bond.

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