Matthews police responded to a shooting at Butler High School this morning where one student was shot. Police say the victim, who has not been identified, was transported to the hospital with unknown injuries. Another student was taken into custody and a firearm was recovered. The police department says it believes this is an isolated incident. Butler High School was on lockdown because of the shooting. In a statement, Charlotte-Mecklenburg Schools said law enforcement had secured the campus and that no person would be allowed on the campus until the lockdown has been lifted.