It has seemed as though every week there is another gun incident at a university or public school. This week it’s something different. A hand grenade has been brought to a Philadelphia charter school this morning, causing school officials to evacuate the entire building.

A student left the grenade out front of the Philadelphia Performing Arts Charter School on the 2600 block of South Broad Street in South Philadelphia this morning. The male student is currently being questioned by police, and the bomb squad has also responded and are on scene. There has been no word on whether the grenade was live or not. Police said the students were all evacuated to the A.S. Jenks Elementary School, which is on the 2500 block of South 13th Street.