The top Iranian and Saudi diplomats also met on Sunday on the sidelines of the 79th session of the United Nations General Assembly in New York.
In March last year, Iran and Saudi Arabia agreed under a Chinese-brokered deal to restore diplomatic relations severed in 2016. As part of a joint statement issued by the two sides, Iran and Saudi Arabia agreed to implement a security cooperation agreement signed in April 2001 and another accord in 1998.