Riyadh — Egyptian President Abdel Fattah El-Sisi is scheduled to attend a Saudi-Egyptian summit during his visit on Sunday, the Egyptian presidency has announced. During the visit, Sisi will meet Custodian of the Two Holy Mosques King Salman. They will discuss various regional and international issues of common concern, especially the fight against terrorism. The visit comes at the invitation of King Salman with the aim to continue joint coordination with Egypt. Sisi met King Salman on March 30 on the sidelines of an Arab Summit in Jordan, in which the King invited Sisi to visit Saudi Arabia. On Thursday, US Secretary of Defense Jim Mattis met Sisi and top brass in Cairo. The meeting "addressed aspects of military and security cooperation between the two countries and ways to further enhance them," the president's office said in a statement. Sisi told Mattis he wanted to "strengthen the ongoing military cooperation between the two countries," it said. Mattis in turn "reiterated the US's commitment to reinvigorating these relations and broadening prospects for cooperation," it added. Mattis "affirmed Egypt's pivotal role in the Middle East and commended its counter-terrorism efforts," the president's office said.