A gym teacher who worked at schools in two Massachusetts communities was arrested this week for possession of child sex abuse images.

Stephen McDonough, 60, of Waltham, was arrested Thursday for possession and dissemination of child sex abuse images, according to state police. Following his arriaignment, he is being held on $25,000 cash bail and is scheduled to return to court on Oct. 22.

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State police said McDonough worked as a gym teacher in schools in Belmont and Waltham, but didn't release the names of the schools.

McDonough's arrest stems from an investigation that began in August, when the Massachusetts State Police Cyber Crime Unit received information from the National Center for Missing and Exploited Child

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