Firefighters were called to a large fire at a kitchen factory in Kirk Sandall Industrial Estate in Doncaster at 5:20am this morning.
At the height of the fire there were eight fire engines at the scene.
Local residents are being asked to keep their doors and windows closed.
Crews have been working hard to bring the fire under control, with the incident now being scaled down to three fire engines.
A fire investigation will take place once the fire is completely out.