GREEN BAY (NBC 26) — Crews contained a fire that broke out at a production shed on Century Road in Green Bay Monday evening, according to the Green Bay Metro Fire Department. First-arriving units found smoke coming from a 3,200-square-foot production shed on the north end of the property. During the incident, firefighters also contained two venting, pressurized cylinders containing a flammable substance. The cause of the fire has not yet been determined and remains under investigation by the Green Bay Metro Fire Department Fire Marshal's Office. The Green Bay Metro Fire Department thanked the Green Bay Police Department, Oneida Police Department, and Brown County Communications Center for their assistance in maintaining a safe incident.