The Noblesville, Indiana, fire department tweeted shortly before 9:40 a.m., saying a shooting had occurred at Noblesville West Middle School. The department said a suspect had been taken into custody.
Fire and police officials did not detail injuries, but WISH TV in Indianapolis reported that a 13-year-old student and an adult were in critical condition. The station reported that the school had been placed on lockdown and a SWAT team was sweeping the building.
Sgt. John Perrine, a spokesman for the Indiana State Police, wrote on Twitter the injured were en route to Methodist Hospital in Indianapolis shortly after 10 a.