SIOUX FALLS, S.D. (KELO.com) -- An eyewitness at the A-OX fire says a propane tank caught fire and caused a chain reaction of explosions.
KELO.com News spoke with Brad Schroeder, an employee at A-OX.
Schroeder also says no one was hurt but we are awaiting official confirmation.
Sioux Falls Fire Rescue radio traffic also indicates that the owner of some classic cars near the location has been given permission to move his collection.
(Nick Hill, KELO.com News, contributed to this report.) (Updated at 5:55 p.m., 5/17/18.)
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SIOUX FALLS, S.D (KELO.com) -- Witnesses heard an explosion and then saw fire coming from the A-OX Welding Supply at 101 N. Harlem in west Sioux Falls.
Nick Hill, KELO.com News' evening anchor, said the explosion shook his apartment. He is currently on the scene gathering more information.
A-OX is located west of Kiwanis Avenue between Thunder Road Cart Track and the W.H. Lyon Fairgrounds.
He sent the above video.
This is a developing story.