Nobody was injured following an amonia leak at Milk Specialties in Fond du Lac. Shortly before 5pm Tuesday firefighters were called to the scene on Tompkins Street and encountered extremely high amonia readings in a compressure room where product is pressurized for cooling. Nearby residents were asked to shelter in place as a precaution until a leak in the building was repaired The shelter in place order was lifted at 10:45pm. Crews were on the scene for several hours ventilating the building. One worker was transported to the hospital for evaluation.