Schools in Wentzville are back to normal operations.
Earlier Wednesday afternoon the schools all went on "tightened security". Police initially said the schools were on lockdown, but students were allowed to move from class to class inside the buildings.
Just after 2PM the all clear was given.
Police say there was never a problem at the schools, but an issue in a neighborhood near the school.
Four Ritenour schools experienced a brief lockdown Thursday afternoon.
Police say a group of teens threw a brick at a passing car. The driver swerved in an attempt to hit the teen who threw the brick. The driver instead, collided with two houses, knocking down one homeowner's carport.
In total nine teens were arrested in connection to the incident.
The Early Childhood Center, Ritenour High School, Kratz Elementary School and Marvin Elementary School were all placed on external lockdown, meaning kids could not go outside for recess. The lockdown lasted from just before 1PM until around 1:20PM.