MINNEAPOLIS (WCCO) – A 58-year-old Brownsville man faces four criminal charges related to the illegal manufacturing and dealing of explosives.

Kenneth Ray Miller made his first appearance in U.S. District Court on Wednesday.

READ MORE: During Resentencing Of Mohamed Noor, Judge Asks: What Changes Have Been Made To Minneapolis Police?

A federal indictment accuses Kenneth Ray Miller of illegally manufacturing, dealing, transporting, and possessing explosives. He’s also accused of illegally possessing firearms.

READ MORE: 'Really Disgusting And Elaborate': Alleged Sex Competition Prompts Protest, Investigation At Minnesota College

According to the indictment, between 2013 and June 2019, Miller “imported, manufactured, transported and dealed explosive materials, smoke generating devices and a chlorate explosive mixture.”

He was also allegedly in possession of several firearms despite having prior felony convictions that prohibit him from having guns. Authorities found a Smith & Wesson Model 19-6 revolver, a Winchester Model 1200, 12-gauge shotgun, and a Norinco SKS Sporter rifle.

MORE NEWS: Mohamed Noor Resentenced To 57 Months For Manslaughter In Justine Ruszczyk Damond’s Shooting Death

The case was investigated by the Bureau of Alcohol, Tobacco, Firearms and Explosives, along with the Houston County Sheriff’s Office, the St. Paul Police Department, the U.S. Environmental Protection Agency, and the State Fire Marshal.