(KMOV) -- Kids participating in the 3rd Annual Polar Bear Pickup found a handgun among litter along the Mississippi River in Missouri.
The organization River Kids hosted their annual river clean up day Saturday. Kid and adult volunteers spent five hours cleaning up North Riverfront Park, just south of Interstate 270.
Among soda bottles, paper products and candy wrappers, a couple kids found a handgun. It is unclear if the gun was loaded. The kids reported their find to some participating parents. The parents took the gun and placed it in the truck of a car and called police.
Police arrived on the scene and secured the weapon.
Participants in today's clean up received free t-shirts, lunch and refreshments. REI gear was given away as prizes for the largest, weirdest and most valuable items found.
River Kids is a kid-created and kid-managed organization created in 2003 when a small group of 4th graders heard about what nationally recognized river cleaner Chad Pregracke was doing and decided they wanted to make a difference too. Their main goals are to learn about river wildlife and river pollution, teach others, and take action by cleaning rivers.
River Kids consists of 45 students in grades four through six at New City School in St. Louis, with three additional students from Mary Institute and St. Louis Country Day School and Ladue Middle School.
Other organizations with volunteers include Grace Hill AmeriCorps Rangers, Trailnet, Confluence Greenway, REI and New City School.
For more information and volunteer opportunities, email firstname.lastname@example.org.