A Saudi diplomat says the leaders of Egypt and Syria will visit Saudi Arabia on Wednesday to meet with the country's king. The diplomat said the mini-summit is part of King Abdullah's effort to improve relations between the three Arab countries. He spoke on condition of anonymity Tuesday because he was not authorized to talk to the media. Saudi Arabia's official press agency also said Egyptian President Hosni Mubarak and Syrian President Bashar Assad will meet with the Saudi king Wednesday. But it did not specify whether they would meet as a group. Sunni Muslim powerhouses Egypt and Saudi Arabia have had tense relations with Syria because of its ties with Shiite Iran and its support for Hizbullah.