Mohammad Jamshidi, the Iranian president’s deputy chief of staff, tweeted on Sunday that Raisi welcomed and accepted the invitation.

Raisi and King Salman will discuss the “the strengthening of economic and regional cooperation” during their talks in Riyadh, wrote Jamshidi.

A date for the visit was not given.

Iran and Saudi Arabia agreed this month to reestablish diplomatic ties after seven years of hostility. Both countries vie for political and military influence in the region.

As a first step in the rapprochement, which was brokered by China, a meeting of the Saudi and Iranian foreign ministers is expected to take place soon.

The deal includes an agreement to resume diplomatic ties and re-open embassies and missions within the next two months.

Saudi Arabia severed diplomatic relations with Iran following an attack by militants on the Saudi embassy in Tehran in 2016.

Both countries have faced off in regional proxy conflicts, including in Syria and Yemen.