BOSTON (AP) — A Boston man who authorities say secretly recorded boys using the restrooms at a city high school has pleaded guilty to child pornography charges, federal prosecutors say.

Eric Tran Thai, 36, faces up to 15 years in prison under the terms of a plea agreement, according to statement Tuesday from the office of U.S. Attorney for Boston. Sentencing is scheduled for May 13.

Authorities started investigating in February 2018 after two Boston College students complained to campus police that someone had recorded them without their consent using the restrooms at the school. Thai was detained and during a search of his bag police found several covert camera devices, including fake smoke detectors, a water bottle containing a small recording device, and a pair of sunglasses outfitted with a built-in camera, prosecutors said.

Investigators who searched his home found numerous electronic devices containing electronic folders labeled BU, MIT, Harvard, Northeastern, Bunker Hill, Boston Latin High School, and different malls, airports and foreign countries, prosecutors said.

He was charged in connection with folders labeled Boston Latin — the nation’s oldest public high school — which contained about 45 secretly recorded videos of male students using the restroom created between February and December 2017, prosecutors said.

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