VIDEO: Firefighters still working at this hour to contain a blaze at a local manufacturing business. That fire at the Sioux City Foundry plant on 7th Street was first reported just after 2:30 this afternoon. That fire was initially believed to be in a piece of machinery at the plant. Sioux City Fire Rescue says that crews are still looking for where that fire is, nearly three hours later. "Still working on trying to find smoldering fires in the machinery, crooks and crannies in that machinery that they're still trying to get into, the metal compartment itself," said Fire Marshal Joe Rodriguez.