United Nations, Jan 25 (Agencies): The United States on Tuesday demanded the sacking of UN Special Rapporteur Richard Falk for "noxious" comments claiming there had been a US cover-up over the September 11 attacks.

UN Secretary General Ban Ki-moon condemned the comments by Richard Falk, UN special rapporteur on human rights in the Palestinian territories, as "an affront" to the victims of the 2001 Al-Qaeda attacks on New York and Washington.

The US ambassador to the United Nations, Susan Rice, called Falk's views "despicable and deeply offensive" and said she had registered a protest and called for his dismissal.

Falk, himself a US citizen, made comments that are 'so noxious that it should finally be plain to all that he should no longer continue in his position on behalf of the UN,' US Ambassador to the UN Susan Rice said in a statement.

Falk wrote in his personal blog on January 11 that there are "awkward gaps and contradictions in the official explanations" given for the attacks when hijacked jets crashed
into the World Trade Center towers in New York and the Pentagon in Washington.

He said there was "an apparent cover-up" by the US government over its knowledge of the attacks masterminded by Osama bin Laden.

Falk is the UN special rapporteur on the human rights situation in occupied Palestinian territories.

Falk said mainstream US media had been "unwilling to acknowledge the well-evidenced doubts about the official version of the events: an Al-Qaeda operation with no foreknowledge by government officials."