The International Atomic Energy Agency (IAEA) has repeatedly been at loggerheads with Syria in the past over what it says are "unresolved issues" regarding suspected nuclear activities.

On his visit, the IAEA chief met with Syrian President Ahmed al-Sharaa and Foreign Minister Asaad al-Shaibani.

"Honoured to meet Syrian President Ahmed al-Sharaa in Damascus. I recognise his courage in cooperating with full transparency to close a chapter of Syria's past that diverted resources necessary for development," Grossi said in a post on X.

He said the two sides "will also begin exploring the possibility of nuclear power in Syria".

"Our cooperation is key to closing outstanding issues and focusing on the much needed help IAEA can provide Syria in health and agriculture," he added.

The IAEA has urged Syria repeatedly to cooperate fully with the agency in connection to a suspected nuclear reactor at the Deir Ezzor desert site.

Israel in 2018 admitted carrying out a top-secret air raid in 2007 against what it said was a nuclear reactor under construction at the site in eastern Syria.

Syria had denied it was building a nuclear reactor.

Grossi visited Damascus in March last year, meeting then president Assad who was overthrown in December after nearly 14 years of civil war.

Grossi told an IAEA Board of Governors meeting in March this year that he had requested Syria's cooperation to "fulfil our obligation to verify nuclear material and facilities" and to "address unresolved issues".

"Clarifying these issues remains essential to Syria demonstrating its commitment to nuclear non-proliferation and international peace and security," he said at the time.