One man was killed and more than a dozen people were injured in an industrial plant explosion outside Cleveland on Monday, NBC News reported.

The death of a 46-year-old man was confirmed Monday evening by a spokesperson for the Cuyahoga County Medical Examiner's Office.

A captain with the Oakwood Fire Department described the blast at the I Schumann & Co. metal alloy manufacturer in Oakwood Village, southeast of Cleveland, as a "large explosion" and said some of the injured had been burned.

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

MetroHealth Medical Center in Cleveland said it was treating four patients. Two were described as being in critical condition. NBC affiliate WKYC reported more than a dozen total were injured in the blast.

The blast sent debris across the street, produced a crater in a building and created a smoke plume that could be seen for miles, footage from the scene showed.

I Schumann & Co. said in a statement that employees have been injured and that the blast had caused "significant damage" to its facility. The cause the explosion remains unclear at this point.