A case of false appearances led to an Arkansas elementary school being locked down.
The Sentinel-Record reported that a teacher at Gardner Magnet School in Hot Springs, Arkansas, reported seeing three armed men near the building.
The teacher activated the school's intruder alarm, sending the school into lockdown and leading a SWAT team to surround the school, according to KARK.
The teacher used her Rave Panic Button smartphone app to send the alert.
The "intruders" were actually a pest control team with pellet guns, according to police.
They were in the area responding to a squirrel problem affecting a nearby apartment complex.
Capt. Chris Chapmond, of the Hot Springs Police Department said, "The Panic Button worked as it should and the kids and faculty were secure inside."
Police said the exterminators ended up near the school when they fired a pellet at the squirrel and missed, sending the squirrel running toward the school -- and that's when the teacher mistook the exterminators for armed gunmen.
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The Associated Press contributed to this report.