A massive fire continues to burn at a Louisiana plant following an explosion on Friday, prompting authorities to maintain an evacuation order for everyone living within a one-mile radius of the site. The explosion occurred at Smitty’s Supply, a lubricant production facility located in Roseland, Tangipahoa Parish. According to its website, Smitty’s Supply manufactures and distributes lubricants, including motor oil, and employs about 400 people. Louisiana State Police Sgt. The Louisiana Department of Environmental Quality has been monitoring the area, but the cause of the explosion is still unknown.