VIDEO: The Eau Claire Fire Department is investigating a fire that happened at the National Presto Industries factory Sunday afternoon. Crews were called to the building on North Hastings Way at about 2 p.m. They say employees were already evacuated by the time they arrived. Authorities could see smoke coming out of several vents and at the roof-line, but they say flames were pretty much contained to one of the machines used for manufacturing. Firefighters were able to put of the fire quickly, but stayed on the scene for a few hours to make sure the large building was properly ventilated.