It is hard to give credence to these reports since the UN largely functions as the US whipping boy. The US by the way is warmaking illegally in Syria with absolutely no mandate to be there, thereby following a long tradition.
Instances of the United States overthrowing, or attempting to overthrow, a foreign government since the Second World War. (* indicates successful ouster of a government)

    China 1949 to early 1960s
    Albania 1949-53
    East Germany 1950s
    Iran 1953 *
    Guatemala 1954 *
    Costa Rica mid-1950s
    Syria 1956-7
    Egypt 1957
    Indonesia 1957-8
    British Guiana 1953-64 *
    Iraq 1963 *
    North Vietnam 1945-73
    Cambodia 1955-70 *
    Laos 1958 *, 1959 *, 1960 *
    Ecuador 1960-63 *
    Congo 1960 *
    France 1965
    Brazil 1962-64 *
    Dominican Republic 1963 *
    Cuba 1959 to present
    Bolivia 1964 *
    Indonesia 1965 *
    Ghana 1966 *
    Chile 1964-73 *
    Greece 1967 *
    Costa Rica 1970-71
    Bolivia 1971 *
    Australia 1973-75 *
    Angola 1975, 1980s
    Zaire 1975
    Portugal 1974-76 *
    Jamaica 1976-80 *
    Seychelles 1979-81
    Chad 1981-82 *
    Grenada 1983 *
    South Yemen 1982-84
    Suriname 1982-84
    Fiji 1987 *
    Libya 1980s
    Nicaragua 1981-90 *
    Panama 1989 *
    Bulgaria 1990 *
    Albania 1991 *
    Iraq 1991
    Afghanistan 1980s *
    Somalia 1993
    Yugoslavia 1999-2000 *
    Ecuador 2000 *
    Afghanistan 2001 *
    Venezuela 2002 *
    Iraq 2003 *
    Haiti 2004 *
    Somalia 2007 to present
    Honduras 2009
    Libya 2011 *
    Syria 2012
    Ukraine 2014 *