Iranian President Hassan Rouhani has said that if Iran's interests were protected, it would remain committed to its 2015 nuclear deal, which his foreign minister hopes could be redesigned without Washington.
Stressing that the nuclear deal proved to the world that Iran is a peace-seeking country, Mr. Rouhani added, "today, we see that the 5 [signatory] countries from Europe and the global community emphasize the implementation of this agreement and insist on its continuation".
May was said to have raised these concerns in a call with Trump on Friday.
He also referred to good cooperation between Iran and Sri Lanka in worldwide organizations and communities, saying, "the Islamic Republic of Iran's foreign policy is based on peace, security and constructive interaction with the world".More news: Indian Supreme Court refuses to order probe into Bollywood actor's death
Sirisena is expected to hold meetings with Rouhani as well as other Iranian officials including Foreign Minister Zarif.
China's Foreign Minister Wang Yi said he believed Mr. Zarif's tour would "improve countries'. understanding of Iran's position." and help Tehran protect its "legitimate national interests".
The two leaders reiterated the importance of bilateral dialogue and said they were looking forward to the upcoming meeting between the UK, German, French and Iranian foreign ministers, and the European Union foreign affairs chief in Brussels on Tuesday.
Days after the Iranian leader expressed doubt about the future of the deal, European leaders such as President Emmanuel Macron of France, Angela Merkel of Germany and Theresa May of Britain all spoke about their commitment to the deal, despite USA withdrawal last week.
Rouhani's statement comes just after President Trump elected to withdraw the USA from the Obama-era deal and begin re-imposing what he called the "highest level" of economic sanctions on Iran.More news: Hayley Kiyoko Slams Rita Ora's New Song, "Girls", for Being "Tone-Deaf"
The head of the Revolutionary Guards, Mohammed Ali Jafari, also criticised "certain officials" who "look to outsiders".
"America's exit aims to break the Iranian people's resistance, which is not new. but today's problem is not USA sanctions, it's that some officials look towards outside rather than looking at domestic potential", said Gen. Mohammad Ali Jafari, commander of the Revolutionary Guard, according to the state news agency IRNA.
On Wednesday, Mr Jafari had cast doubt on European nations' ability to save the nuclear accord.
With the deal opposed by hardliners at home, some analysts say the pragmatic Rouhani may now be a lame duck leader. Trump now plans to introduce fresh sanctions against Iran, which will have a negative impact on United Kingdom businesses operating in the country.More news: Mercedes' Lewis Hamiton tops second practice at Barcelona