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Laura Seitz, Deseret News
"Shooting victim" Tanya Dow weeps as Salt Lake City firefighters Billy Oliver and Mike Fox tend to other shooting victims during a Mass Casualty Incident drill at Utah State Fairpark in Salt Lake City on Wednesday, Oct. 10, 2012. The drill provided training to firefighters and paramedics on responding to a Mass Casualty Incident while also giving first responders the chance to work with other agencies.

SALT LAKE CITY — Salt Lake Valley fire departments participated in a Mass Casualty Incident drill Wednesday at Utah State Fairpark. The drill is intended to provide training to firefighters and paramedics on responding to a mass causality incident, such as a shooting, as well as give first responders the chance to work with other agencies.

The incident featured 50 injured "shooting victims," which were mannequins.