Iran and Saudi Arabia agreed on Friday to re-establish relations after seven years of hostility which had threatened stability and security in the Gulf and helped fuel conflicts in the Middle East from Yemen to Syria.
The deal was announced after four days of previously undisclosed talks in Beijing between top security officials from the two rival Middle East powers.
Tehran and Riyadh agreed "to resume diplomatic relations between them and re-open their embassies and missions within a period not exceeding two months", according to a statement issued by Iran, Saudi Arabia and China.
"The agreement includes their affirmation of the respect for the sovereignty of states and the non-interference in internal affairs."
They also agreed to activate a security cooperation agreement signed in 2001, as well as another earlier accord on trade, economy and investment.
Both countries thanked China, as well as Iraq and Oman for hosting earlier talks in 2021 and 2022.
The agreement was signed by Iran's top security official, Ali Shamkhani, and Saudi Arabia's national security adviser Musaed bin Mohammed Al-Aiban.
China's foreign ministry did not immediately respond to a request for comment.
A White House national security spokesperson said the United States was aware of reports of the agreement and welcomed any efforts to help end war in Yemen and de-escalate tensions in the Middle East.
The two leading Shi'ite and Sunni Muslim powers in the Middle East have been at odds for years, and backed opposite sides in proxy wars from Yemen to Syria and elsewhere.
Saudi Arabia cut ties with Iran in 2016 after its embassy in Tehran was stormed during a dispute between the two countries over Riyadh's execution of a Shi'ite Muslim cleric.
A senior Iranian security official said Friday's agreement had been endorsed by Supreme Leader Ayatollah Ali Khamenei.
"That is why Shamkhani travelled to China as the supreme leader’s representative,” the official told Reuters. “The establishment wanted to show that the top authority in Iran backed this decision.”
(Reporting by Dubai newsroom; Writing by Dominic Evans; editing by Jason Neely, Jon Boyle and Nick Macfie)
