Mahmoud Ahmadinejad used an interview with CNN's Piers Morgan to once again deny the holocaust.
The Iranian President, who is in New York to give a speech at the United Nations on Wednesday, appeared on the show on Monday night, using the platform to cast doubts on the Nazi massacre, which left an estimated six million dead.
During the interview, Ahmadinejad maintained his previous stance of refusing the judge the Nazi regime for its mass extermination during the Second World War.
"Whatever event has taken place throughout history, or hasn't taken place, I cannot judge that. Why should I judge that? I say researchers and scholars must be free to conduct research and analysis about any historical event," said the Iranian leader.
Ahmadinejad spoke through a translator to Morgan
Ahmadinejad also spoke to Morgan about the anti-Islam film, denouncing the work as "provocative".
"Offending the Holy Prophet is quite ugly," Ahmadinejad said. "This has very little or nothing to do with freedom and freedom of speech. This is the weakness of and the abuse of freedom, and in many places it is a crime. It shouldn't take place, and I do hope the day will come in which politicians will not seek to offend those whom others hold holy."
He also said he would have preferred Osama bin Laden to have been given a "transparent" trial rather than assassination at the hands of US Navy Seals.
Earlier on Monday, the President had addressed a gathering of journalists and editors, emphasising the Iranian position on Israel, claiming that Jewish state did not belong in the Middle east, having existed for only 60 years.
"They have no roots there in history. They do not even enter the equation for Iran," he said.
Ahmadinejad was equally bellicose about Israel on camera. When asked by Morgan what he meant when he said Israel should be "wiped off the map", he said: "If a group comes and occupies the United States of America, destroys homes while women and children are in those homes, incarcerate the youth of America, impose five different wars on many neighbors, and always threaten others, what would you do? What would you say? Would you help it? ... Or would you help the people of the United States?"
"So when we say 'to be wiped,' we say for occupation to be wiped off from this world. For war-seeking to (be) wiped off and eradicated, the killing of women and children to be eradicated. And we propose the way. We propose the path. The path is to recognize the right of the Palestinians to self-governance."
Ahmadinejad: 'Offending the Holy Prophet is quite ugly'
Ahmadinejad's fiery statements come just days after a meeting with Ban Ki-moon in which the UN Secretary-General implored the Iranian leader to avoid "potentially harmful consequences of inflammatory rhetoric."