A Florida school resource officer accidentally set off his gun in the cafeteria Tuesday when he leaned against a wall, officials said.

No students were hurt when the officer’s Sig Sauer 9 mm went off near the lunch line at Weightman Middle School, Pasco County Sheriff’s Lt. Troy Fergueson said, according to WTSP.

The round hit the floor and ricocheted into the brick wall behind the officer, who wasn’t identified publicly.

The weapon was in the officer’s holster at the time of the incident.

Authorities have since placed the officer on administrative leave, while they investigate.

The officer was wearing a bodycam, but it wasn’t turned on, Fergueson said. Investigators will look for surveillance video, he added.