REPORT: Arab Countries Join Saudi Arabia in Cutting Ties with Iran

Saudi Arabia said on Monday it would restore ties with Iran when Tehran stopped meddling in the affairs of other countries and pledged that Riyadh would continue to work "very hard" to support bids for peace in Syria and Yemen despite the spat.

Saudi Arabia cut all ties with Iran on Sunday following the kingdom's execution of prominent Shi'ite cleric Nimr al-Nimr. Protesters in Iran and Iraq marched for a third day to denounce the execution.

When asked what it would take for ties to be restored, Saudi U.N. Ambassador Abdallah Al-Mouallimi told reporters: "Very simple - Iran to cease and desist from interfering in the internal affairs of other countries, including our own."

He added, "If they do so, we will of course have normal relations with Iran. We are not natural-born enemies of Iran."

On Monday, Bahrain and Sudan cut all ties with Iran, following Riyadh's example. Saudi Foreign Minister Adel al-Jubeir told Reuters Riyadh would also halt air traffic and commercial relations between the rival powers.

Jubeir blamed Iran's "aggressive policies" for the diplomatic action, alluding to years of tension that spilled over on Saturday night when Iranian protesters stormed the kingdom's embassy in Tehran.

The United Arab Emirates (UAE), home to hundreds of thousands of Iranians, partially downgraded its relations but the other Gulf Arab countries - Kuwait, Qatar and Oman - stayed above the fray.

Shi'ite Iran accused Saudi Arabia of using the attack on the embassy as an "excuse" to sever ties and further increase sectarian tensions.

A man was shot dead in Saudi Arabia's Eastern Province late on Sunday, and two Sunni mosques in Iraq's Shi'ite-majority Hilla province were bombed in the fallout from the dispute between the Middle East's top Sunni and Shi'ite powers.

But analysts said fears of a sectarian rupture across the Middle East were premature, and the break in Saudi-Iran relations could be more a symptom of existing strains than evidence of new ones.

"The downgrading of ties is not fundamentally a question of responding to executions and the storming of an embassy... (but rather) a function of a much deeper conflict between the two states," said Julien Barnes-Dacey, senior policy fellow at the European Council on Foreign Relations.