At least a dozen people were injured, one critically, in an industrial plant explosion outside Cleveland on Monday, NBC affiliate WKYC of Cleveland reported.

The late-morning blast at the I Schumann & Co. metal alloy manufacturer in Oakwood Village southeast of Cleveland was described by a captain with the Oakwood Fire Department as a "large explosion."

The official said at least one person was flown by helicopter to a hospital. The subsequent fire was under control Monday afternoon, but crews were still working on hot spots, the captain said.

The blast sent debris across the street, produced a crater in a building, and created a smoke plume that could be seen for miles, according to social media video reviewed by NBC News and as seen in affiliate footage from the scene.

I keep saying this: These are rarely "accidents," in that it was something no one could predict.

A vote for Republicans is a vote for deregulation.