PHILADELPHIA (AP) — Federal prosecutors will not file charges against a school district or its employees over the use of software to remotely monitor students.

U.S. Attorney Zane David Memeger says investigators have found no evidence of criminal intent by Lower Merion School District employees who activated tracking software that took thousands of webcam and screenshot images on school-provided laptops.

A student and his family sued the district in February, claiming officials invaded his privacy by activating the software. That case continues.

The district has acknowledged capturing 56,000 screen shots and webcam images so it could locate missing laptops.

Memeger says he decided to make Tuesday's announcement to close the matter before the start of the school year.