BREAKING: Multiple people are feared to be victims after an active shooting at Perry High School on Thursday morning. This is a breaking news story. Stay with us for updates. There are at least five ambulances, multiple police units, air ambulance helicopters, and firefighters on the scene, which is 25 miles northwest of Des Moines. The Dallas County Sheriff's Office confirmed the active shooting investigation - but said no other information is available at this time. Shots were reported at 8.20am. Witnesses at the scene reported seeing crying students reuniting with parents near the entrance to the high school. Perry Elementary School and Perry Middle School - which are nearby to the high school - were evacuated and buildings were cleared by 8.35am. There is no active threat in those vicinities. Multiple helicopters were en route to the scene to provide critical care transportation, according to public flight data. One helicopter landed on the high school's football field. Linda Ando...