A 15-year-old boy is accused of making a threat against a school.

NEW CASTLE — A 15-year-old Edinburg, Pa., boy is being held in the Keystone Adolescent Center in Greenville following an investigation into a bomb threat at Mohawk High School. According to police reports, a threatening, handwritten note was discovered in a boy’s restroom at the school. The boy has been charged with aggravated assault, two counts of terroristic threats and threats to use weapons of mass destruction. The boy, accompanied by a guardian, turned himself in to police today.