Various international positions: Trump: Iran will never have a nuclear weapon

US President Donald Trump vowed not to allow Iran to possess a nuclear weapon, the day after Tehran announced that it would abandon any restrictions in uranium enrichment.

"Iran will never possess a nuclear weapon," the American President wrote in a tweet on Twitter, in the context of his escalating threats to Iran since the assassination of Iranian General Qassem Soleimani with an American strike in Baghdad.

For its part, White House advisor Killian Conway said on Monday that President Trump is confident of his ability to negotiate a new nuclear agreement with Iran, a day after Tehran announced it was seeking to reduce its obligations under the 2015 nuclear deal further.

The Trump administration withdrew in 2018 from the international agreement on Iran's nuclear program concluded in 2015 between Iran and the five permanent members of the UN Security Council (China, the United Nations, France, Britain and Russia) and Germany.

Iran has agreed - under the agreement that has become threatened - to reduce its nuclear activities significantly, to demonstrate that it has no military objectives, in exchange for lifting part of the international economic sanctions that strangle its economy.

But on Sunday, Tehran reaffirmed its readiness to return to implementing the nuclear agreement, if Washington changed its policy towards it.

International responses
The Russian Foreign Ministry said on Monday that it does not see a threat of proliferation of nuclear weapons after Iran's decision not to abide by restrictions on uranium enrichment, and added that Russia remains fully committed to Iran's nuclear agreement.

And the International Atomic Energy Agency announced that it would inform member states of any developments in Iran as necessary, after the latest announcement from Tehran to back down from its obligations under the nuclear agreement with world powers in response to US sanctions.

"The agency's inspectors continue to carry out verification and monitoring operations in the country," the agency said in a statement.

On Monday, European Union Foreign Minister Josep Borrell expressed "deep regret" over Iran's recent announcement that it had abandoned all restrictions related to uranium enrichment.

"The full implementation of the nuclear agreement by all is today more important than ever, for regional stability and international security," Borrell wrote in a tweet.

A spokesman for British Prime Minister Boris Johnson said on Monday that Iran's announcement that it would abandon restrictions on uranium enrichment was a cause for concern, and that Britain was urgently talking to the parties about the next moves to take.

As for Germany, it announced that it still wants to salvage Iran's nuclear agreement signed with the six world powers in 2015, despite Tehran's announcement that it will abandon the restrictions of uranium enrichment.