A letter containing an unidentified white power mailed to 63rd District Court in Grand Rapids Monday morning disrupted court activity while authorities investigated the suspicious letter delivered by the U.S. Postal Service.
The courthouse was locked down for about three hours while Kent County Sheriff’s detectives, the FBI and Grand Rapids Fire Department assessed the extent of threat and the containment of the unknown substance.
Authorities determined that the substance had been contained and was not a threat to anyone inside or outside of the building. There have been no symptoms of exposure reported by any of the involved parties, officials said.
The investigation is ongoing, and additional testing will be conducted to determine exactly what the substance is.
Anyone with information about this situation is encouraged to call the Kent County Sheriff’s Office or Silent Observer at 616-774-2345.