Among other events in the United States that have been linked to the conspiracy is the Black Tom explosion when, on the night of 30 July 1916, saboteurs blew up nearly 2 million tons of arms and ammunition at the Black Tom terminal at New York harbour, awaiting shipment in support of the British war effort. Although blamed solely on German agents at the time, later investigations by the Directorate of Naval Intelligence in the aftermath of the "Annie Larsen" incident unearthed links between the Black Tom explosion and Franz von Papen, the Irish movement, the Indian movement as well as Communist elements active in the United States.