Two firefighters and two ship workers were hospitalized Friday night after a large fire broke out at Bay Shipbuilding in Sturgeon Bay.
Witnesses say large amounts of smoke could be seen but no flames were showing.
Multiple units responded to the fire that first got reported around 6:00 PM.
The fire was located on a freighter called the Alpena. The ship is out of Cleveland, OH.
Authorities are still looking for the cause of that fire.