Meanwhile, U.N. Secretary-General Ban Ki-moon is expected to propose reopening an inquiry into allegations that former U.N. Secretary-General Dag Hammarskjöld was assassinated by a South African paramilitary organization supported by the CIA and British intelligence. Hammarskjöld was the U.N.’s second secretary-general and died in a plane crash in 1961. The South African government has announced the recent discovery of decades-old intelligence documents detailing the alleged plot. The CIA has denied involvement.