Foreign Minister Adel Al-Jubeir said the upcoming Camp David summit between Gulf leaders and US President Barack Obama will focus on Iran’s “aggressive” moves in the Middle East, SPA reported on Tuesday.

“We see Iranian support for terrorist organizations and facilitating the work of terrorist organizations, so the challenge will be in how to coordinate US-Gulf efforts in order to collectively face these aggressive moves on the part of Iran,” Al-Jubeir said, according to SPA.

Al-Jubeir said the summit would focus on conflicts in Syria and Iraq and also on the fighting in Yemen, where a Saudi-led alliance of several nations is bombing the Iranian-backed Houthi militia which controls much of Yemen.

A five-day truce, which was to start on Tuesday, in Yemen could be extended if “(aid deliveries) succeeded and if the Houthis and their allies don’t engage in hostile activities,” he said. In statements broadcast by Al Arabiya News Channel, Al-Jubeir said Thursday’s summit is due to “focus on military cooperation, terrorism and Iranian interference in the region.

“Americans will also explain to Gulf delegates the details of their nuclear deal with Iran,” Al-Jubeir added.

Earlier on Tuesday, Custodian of the Two Holy Mosques King Salman expressed his regret to Obama in a phone conversation at not being able to attend the summit.

The king confirmed he was sending Crown Prince Mohammed bin Naif and Deputy Crown Prince Mohammed bin Salman to represent the Kingdom.

Al-Jubeir said the participation of the Crown Prince and the Deputy Crown Prince in the summit would be “unprecedented.”

During the phone conversation, King Salman and Obama emphasized the strength of the two countries’ partnership and agreed to continue their close consultations on a wide range of regional and international issues.

They also agreed on the necessity of working closely, along with other GCC states, to resolve regional conflicts, according to a statement issued by the White House.

Regarding Yemen, Obama welcomed Saudi Arabia’s announcement of a cease-fire and both leaders agreed on the need to address the urgent humanitarian situation in the war-torn country.

The American leader reiterated his country’s commitment to defend the security of Saudi Arabia from any external aggression.