"The Custodian of the Two Holy Mosques expressed his hope that reaching a final binding deal would strengthen the stability and security of the region and the world," Saudi Press Agency reported early on Friday, using Salman's official title.

Iran and world powers reached a framework agreement on Thursday. The framework, which includes gradually lifting Western sanctions on Iran, is contingent on reaching a final pact by June 30.

US President Barack Obama called Saudi Arabia's King Salman bin Abdulaziz al-Saud on Thursday to discuss the deal the United States and international negotiators reached with Iran on its nuclear program, the White House said.

Obama invited Salman and the Persian Gulf Cooperation Council to Camp David for a summit to continue conversations on Iran.

Saudi Arabia, which is locked in a region-wide tussle for power with Iran, is worried that by loosening sanctions on the Islamic Republic, Tehran will have greater scope to back proxies Riyadh

Saudi Arabia, which is locked in a region-wide tussle for power with Iran, is worried that by loosening sanctions on the Islamic Republic, Tehran will have greater scope to follow policies that Riyadh opposes across the Middle East, Jerusalem post reports.

However, despite its private reservations, Riyadh has publicly backed the talks between Iran and world powers since they were announced in late 2013 so long as they led to a deal.

Saudi Arabia now is at war against Yemen. Iran condemned this aggression in strongest terms.