Four fire crews have been called to a blaze at a factory in Swanley this morning.
The crews from Dartford and Thames-side got the call at 6.34am and rushed to the scene in London Road.
The fire started on a waste paper machine conveyor belt at the premises.
The crews used breathing apparatus to enter the building and hose reels jets to deal with the fire.
A spokesman for Kent Fire and Rescue said: "The fire has been contained and staff safely evacuated from the smoke logged building.
"The cause of the fire is not known and there are no reported injuries."