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Science project prompts lockdown at Prospect High

A “suspicious device” that prompted a lockdown at a northwest suburban school Wednesday morning turned out to be a science project.

The device was found outside the building on the east side of Prospect High School campus at 801 W. Kensington Rd. in Mount Prospect, according to Mount Prospect police.

Following procedure, High School District 214 placed the building on soft lockdown and police were called. After an initial assessment could not identify the object, the Cook County Sheriff’s Bomb Squad was called.

The Bomb Squad first rendered the device inoperable, and later determined it did not pose a threat, according to police.

When a search turned up a second device in a car in the parking lot, officers located the owner of the vehicle and learned the objects were part of a “classroom extra-credit science experiment,” the statement said.

Officer Greg Sill described the objects as part of a “water density project.”

Police said neither object posed a threat to students, staff or the community.