NORMAL – A teacher tackled a 14-year-old student and detained him just after the teen fired a gunshot into the ceiling of a packed Illinois high school classroom Friday, police and witnesses said. No one was injured.

The boy was taken into custody and questioned by police while Normal Community High School’s more than 1,800 students were evacuated to a nearby church where parents could pick them up, Normal police chief Rick Bleichner said.

Investigators weren’t sure how the handgun was brought to school or why, and as far as they knew, no one in particular was targeted, Bleichner said.