HARRISONVILLE, Mo. — The Harrisonville Police Department evacuated an area in downtown Thursday after they found what was initially called a possible “antique explosive” inside a building.

Hours later, law enforcement determined it was a World War II-era grenade.

Harrisonville police first called the Kansas City Police Department’s Bomb & Arson team to the scene. After evaluating, officials called an explosives team at Fort Riley.

The Fort Riley team determined the device was a decades-old grenade. They were able to safely remove it from the building and dispose of it.

Harrisonville police evacuated multiple business near S. Main Street between Mechanic and Wall streets, and several roads were closed Thursday as well.

The area has since been reopened.

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