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Filed Under:bomb squad, Gary, grenade, Indiana, Little Calumet River

CHICAGO (CBS)– An explosive device was located by men fishing at the Little Calumet River bridge in Gary, Indiana.

Gary police said the men pulled in what appeared to be a live grenade.

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The road was closed off as Porter County bomb squad took possession of the grenade.

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Officials are investigating how the explosive device got into the river.

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This is a developing story.