The owners of a Plymouth, Mass., furniture warehouse want to know the origin of a chunk of metal that plunged through the roof.

No one was hurt when the six-inch, cylindrical piece of metal weighing about five pounds came through the roof Wednesday or Thursday. The chunk punched a small hole in the warehouse roof over a storage closet and scattered ceiling-tile debris on the floor.

Federal Aviation Administration inspectors say the piece of metal, broken at both ends, was not an airplane part.

An FAA spokeswoman says the chunk likely came from a piece of heavy machinery, possibly a wood chipper. That still doesn't explain how it came crashing through the roof.

Police are also stumped.

The owner of Michael's Furniture Warehouse says someone could have been killed.

Get the latest news and more great videos at NewsdayTV Credit: Newsday

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Get the latest news and more great videos at NewsdayTV Credit: Newsday

Suozzi vs. Trump on 'slush fund' ... What's in store with the weather ... Let's Go: LIRR trip to nostalgic spots ... H.S. plays of the week ... What's up on LI ... Get the latest news and more great videos at NewsdayTV

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