President of the Syrian National Coalition Khaled Khoja delivers remarks regarding Russian air strikes on Syria at the United Nations.

Syria’s political opposition in exile urged all Arab countries on Monday to sever diplomatic ties with Iran after Saudi Arabia, a strong supporter of the Syrian opposition, cut relations with Tehran.

Saudi Arabia has been rallying Sunni allies to its side in a growing diplomatic row with Iran, deepening a sectarian split across the Middle East following its execution of a Shi’ite preacher.

The Turkey-based Syrian National Coalition declared its support for Riyadh’s move, calling on “all Arab and Islamic countries to take a similar step” and criticized what it said was Iran’s support for militias in Syria and Iraq.

Iran supports Syrian President Bashar al-Assad, whose forces, backed also by Russia, are fighting against an array of insurgent groups including rebels backed by Saudi Arabia and other countries in the region.

Sunni-Shi’ite tension in the region spilled over on Saturday night when Iranian protesters stormed the kingdom’s embassy in Tehran after Saudi Arabia executed a Shi’ite preacher.

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