Iran said Wednesday the sacking of John Bolton as President Donald Trump's national security adviser will not necessarily pave the way for negotiations with the United States.

"The departure of US National Security Adviser John Bolton from President Donald Trump's administration will not push Iran to reconsider talking with the US," state news agency IRNA quoted Iran's United Nations envoy Majid Takhteravanchi as saying.

Takhteravanchi said there was no reason to engage in talks while the US sanctions against Iran remain in place.

"As long as the US government's economic terrorism and such cruel sanctions are imposed on the Iranian people, there is no room for negotiations," the Iranian envoy said, adding that any meeting must be held within the framework of the group of major powers that negotiated the 2015 nuclear deal.

Read more: Iran toughens opposition to bilateral talks with US

Trump's top aides suggested Tuesday that the US president could meet Iranian President Hassan Rouhani without preconditions.

Although Trump had said in the past that he was open to talks with Iranian officials, Bolton's departure has raised hopes about such meeting.

"The removal of John Bolton is an internal affair and we don't take stands on domestic issues," said Takhteravanchi.

Read more: Opinion: President Trump's critics fall silent 

'Maximum pressure'

Secretary of State Mike Pompeo and Treasury Secretary Steven Mnuchin stressed the US would maintain "maximum pressure" against Iran following Bolton's sacking.

Bolton is closely linked to the 2003 invasion of Iraq and other aggressive US foreign policy decisions. Analysts have said he had been one of the main driving forces in the White House's tough line toward Iran, North Korea and Venezuela, among others.

Rouhani, however, signaled a possible thaw in US-Iran relations if Trump "put warmongers aside."

Rouhani's website quoted him as urging the US to also abandon the "maximum pressure policy" on Iran.

Ali Rabiei, a government spokesman, said after the meeting that Bolton's dismissal may help the US have a "less biased" attitude toward Iran, calling Bolton "the symbol of America's hawkish policies and its animosity toward Iran."

Iran's nuclear breach

Rouhani announced Wednesday that his country would soon begin researching and developing improved centrifuges to speed up the process of enriching uranium.

The move marks Iran's third breach of the international deal it signed in 2015, under which it agreed to limit its nuclear program in exchange for economic sanctions relief.

In July, Iran abandoned two of its commitments under the deal by allowing its stockpile of enriched uranium to exceed the 300-kilogram limit and breaching the cap on the purity of its uranium stocks.

The 2015 deal was struck after concerns from the US and its allies that the nuclear program, which Iran insisted was for civilian use, aimed to produce weapons. US President Donald Trump unilaterally withdrew from the accord last year and reimposed sanctions on Iran.

Read more: UN nuclear watchdog: 'Time is of the essence' on Iran cooperation

shs/sms (AP, AFP)

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