United Nations Hammarskjold Investigation

FILE - In this May 19, 1953, file photo, Dag Hammarskjold, recently appointed secretary general of the United Nations who is on a visit to Sweden, smokes his pipe at a news conference at the Foreign Office in Stockholm. In a report released Monday, Oct. 7, 2019, the head of the latest investigation into the mysterious 1961 plane crash that killed Hammarskjold says an external attack may have downed the aircraft and is urging the U.S., Britain, South Africa and Russia to provide more information.