Authorities say a 16-year-old student has been arrested for orchestrating a series of network outages and cyberattacks during the first week of school in Florida’s largest district.

The Miami-Dade Schools Police said Thursday that the boy is a student at South Miami Senior High School. They said there could be others involved in cyberattacks that have plagued the Miami-Dade schools all week.

According to the statement, the student told police he had conducted eight attacks on the school computer system “designed to overwhelm district networks.”

He is charged with computer use in an attempt to defraud, which is a felony; and misdemeanor interference with an educational institution.