Holy Innocents’ Episcopal School in Sandy Springs canceled classes on Nov. 9 after a brief “lockdown” when a former teacher was deemed to be a possible threat, according to school spokesperson Peggy Shaw.

The situation unfolded after the teacher was fired due to alleged “inappropriate communication” with students, then was allegedly seen purchasing a weapon by a school-hired private investigator, according to a Sandy Springs Police statement.

“SSPD was able to located the individual using information provided by the private investigator, and he was taken into custody without incident,” the police statement says.

“The person involved, a former employee, was never on campus,” Shaw said. “Holy Innocents’ took every precaution, and the threat was contained.”

The school at 805 Mount Vernon Highway N.W. was in “lockdown” from 9:45 to 10:50 a.m., and there was a large police presence. After that, the school canceled the rest of the school day.

John Ruch is an Atlanta-based journalist. Previously, he was Managing Editor of Reporter Newspapers.