BIG RAPIDS, MI -- A pop bottle left in a Big Rapids parking lot, and filled with an unknown chemical substance, prompted the state police to neutralize it with a robot.

Bigh Rapids police said the bottle was found about 8:40 a.m. Friday, Nov. 21 in a parking lot for Water Tower Apartments.

Police told residents of the apartment complex to shelter in place.

The state police bomb squad responded and used a robot to neutralize the bottle.

Investigators collected a sample of the fluid and sent to a lab in Grand Rapids for testing.

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