Police have charged a juvenile with making an online threat targeting the Mt. Blue Campus in Farmington.

Students were dismissed early on Monday after a bomb threat was received. Authorities said that threat was a hoax, but a shooting threat received later in the day on Monday led to the arrest of a 15-year-old boy. According to the Portland Press Herald, he was charged with felony terrorizing transmitted via social media and released to his parents. Police Chief Kenneth Charles says the juvenile is associated with the school.

Classes at the campus were cancelled on Tuesday.

Police are still investigating the source of the bomb threat, though Superintendent Christian Elkington said investigators believed that threat was “also unfounded.” Elkington says students will likely return to school Wednesday.