Selma High School locked down after gun found in bag

Two Selma High School students are in police custody after authorities say a handgun was found in one of their backpacks.{} The weapon was found Thursday during a security check.{} The school has metal detectors students must pass through in the cafeteria.{} Two boys, ages 15 and 17, were taken into custody.{} The school was temporarily locked down.{} It's not clear how the weapon got on school grounds undetected.