Mysterious substance found inside envelope at federal courthouse in downtown Indianapolis

Several agencies responded to the federal courthouse in downtown Indianapolis Monday afternoon for a report of a "mysterious substance." The Indianapolis Metropolitan Police Department, Indianapolis Fire Department, Department of Homeland Security and Federal Law Enforcement officers were all called to the courthouse on East Ohio Street just after 4 p.m. after a mysterious smell and substance was found inside an envelope in the building.  Hazmat crews removed an envelope in a sealed bag from the building. It is unclear what type of substance was in that envelope. No injuries were reported.