COLUMBIA — A Lexington County high school was evacuated after a training grenade was found inside a science laboratory.

WIS-TV reports that students and employees at Pelion High School were told to leave the building Friday afternoon after a teacher found the hand grenade.

The Lexington County Sheriff’s Department went to the school and removed the grenade from the property.

A spokesperson with the sheriff’s department said it appears the grenade, which was inside a military box, had been in the laboratory for some time. School officials said deputies determined that the device was a training grenade.

Emergency responders said there was never any danger to students or staff.

Deputies and school administrators are investigating why the grenade was in the laboratory.