JEDDAH: US President Barack Obama telephoned Custodian of the Two Holy Mosques King Salman on Tuesday from Air Force One to discuss the Iran nuclear agreement.

President Obama briefed the king on the contents of the nuclear deal, expressing the United States' keenness on peace and stability in the region.

In response, the king confirmed that Saudi Arabia supports any arrangement that guarantees preventing Iran from acquiring nuclear weapons and at the same time includes an inspection mechanism for all sites.

Both leaders also discussed the urgent need to stop the fighting in Yemen and ensure assistance for all Yemenis through international humanitarian channels.

They also discussed latest regional developments and the strategic relations between Saudi Arabia and the US.

Addressing a news conference in Washington, President Obama insisted that the landmark agreement with Iran was the best way to avoid a nuclear arms race and more war in the Middle East.

“Without a deal,” Obama said, “there would be no limits to Iran’s nuclear program and Iran could move close to a nuclear bomb ... Without a deal, we risk even more war in the Middle East.”

Obama said that if the US does not seize the opportunity for a deal, “future generations will judge us harshly.”

He added: “With this deal, we have the possibility to peacefully resolve a major threat to regional and international security.”

Earlier, Abdullatif bin Rashid Al-Zayani, GCC secretary general, said that Gulf foreign ministers have each received a telephone call from the US Secretary of State John Kerry. He briefed the ministers on the details of the agreement.

Al-Zayani said that the GCC foreign ministers expressed hope that the agreement would help prevent a nuclear arms race.

He added that Kerry stressed the US commitment to the outcome of the recent US-GCC summit in Camp David.

Al-Zayani said Kerry pledged to intensify efforts with GCC countries to promote regional security and stability.