The Lewis and Clark County Sheriff's Office has released photos of the object that was believed to be a detonated explosive device and caused the evacuation of Helena's Rossiter Elementary earlier this week.

Sheriff Leo Dutton said he will be more reserved with the release of information after he made an announcement to media that a black plastic bottle wrapped in tape and containing nuts and bolts was an improvised explosive device, or "IED" that detonated on school grounds. Dutton corrected the information later in the day after bomb squad testing and additional review of security footage showed the bottle to be benign.

The Sheriff said he was acting in the interest of public safety and released what he believed was credible information that turned out to be incorrect.

Rossiter evacuated nearly 500 students during the incident and schools in the surrounding area went on lock down while law enforcement investigated.

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