US President Donald Trump has spoken of disagreements with dismissed National Security Adviser John Bolton, leaving the door open for possible easing of sanctions on Iran after reports suggesting that, while his Iranian counterpart Hassan Rouhani refused to negotiate before the sanctions were lifted.

Speaking to reporters at the Oval Office at the White House on Wednesday, Trump told Bolton that his methods were inconsistent with my positions and asked him to resign, adding that Bolton was at odds with officials in his administration.

"Bolton was supporting the US intervention in Iraq and I have repeatedly opposed it," Bush said.

Trump also said he believed Iran wanted an agreement with Washington over its nuclear program. "But if this deal is not done, that's fine," he said, adding that Iran's uranium enrichment would be "very dangerous for it."

Asked if the United States could ease the "extreme pressure" campaign on Iran, Trump said: "We'll see what happens."

Asked if he might meet the Iranian president at the UN General Assembly, Trump said he was not discussing the meeting.

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Easing sanctions
This comes after world oil prices fell by more than 2%, where Bloomberg quoted "informed" sources that Trump discussed easing sanctions on Iran to open the way for a meeting between him and his Iranian counterpart soon.

Bloomberg said the proposal to ease sanctions caused a sharp dispute between Trump and Bolton at a meeting at the White House last Monday, while Treasury Secretary Stephen Menoshin during the meeting expressed support for the easing of sanctions.

Bloomberg said that Trump decided to expel Bolton in light of the dispute between them, and that the White House began preparations to organize a meeting between Trump and Rouhani.

US Secretary of State Mike Pompeo said yesterday that Trump may meet "without preconditions" with Rouhani at the UN General Assembly in New York this month, while Minoshin said the meeting could happen as the "maximum pressure" campaign continues.

Rouhani: US should abandon policy of lobbying and supporting wars (Reuters)

Hassan Rohani
Iranian President Hassan Rouhani told his French counterpart Emmanuel Macron in a telephone conversation today that "from the perspective of the Iranian government, parliament and people, there is no point in negotiations with America as long as sanctions are in place," state media reported.

Rowhani added that Iran is ready to back down from reducing its commitments to the nuclear deal if it reaches an agreement with Europe, and that the third step of reducing the obligations is under the supervision of the International Atomic Energy Agency.

Rouhani said that preserving the nuclear agreement and the security of waterways are in the interest of Europe and the United States.

At a meeting of the Iranian government, Rowhani commented on Bolton's dismissal by saying that the United States should abandon its policy of lobbying and supporting wars, and realize that it would not be in its interest.

He added that his country is ready to abide by the nuclear agreement if the other parties implement their obligations otherwise they will reduce their commitments, considering the third step was the most important step to reduce the commitments and can not be compared to previous steps, vowing to take other steps if necessary.

Last week, Trump said a meeting with Rouhani was on the sidelines of UN meetings in New York. "Absolutely, everything is possible. They want to solve their problem," he said, referring to inflation in Iran.