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Maryland Heights, MO (KSDK) - Craig Elementary School in the Parkway School District was put on a 25 minute lockdown after a police investigation off of school property.

Authorities say classes were just dismissing when the lockdown was put into effect at 4:05 p.m. Wednesday. Children who had not left school already were kept in the gym.

Police say a road rage incident resulted in two drivers yelling at one another on the side of a nearby road.

When officers arrived the found one of the drivers had a leg, licensed, and concealed gun in the car so as a precaution they notified the school.

The gun was not used or displayed in the incident.

The kids were released at 4:30 p.m.

There's no word on whether charges have been filed in the incident.

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