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Iranian women attend a rally to protest the execution by Saudi Arabia last week of Sheikh Nimr al-Nimr, a prominent opposition Shiite cleric, shown in the posters, in Tehran, Iran, Monday, Jan. 4, 2016. Allies of Saudi Arabia followed the kingdom's lead and began scaling back diplomatic ties to Iran on Monday after the ransacking of Saudi diplomatic missions in the Islamic Republic, violence sparked by the Saudi execution of al-Nimr. (AP Photo/Vahid Salemi)
Iranian women attend a rally to protest the execution by Saudi Arabia last week of Sheikh Nimr al-Nimr, a prominent opposition Shiite cleric, shown in the posters, in Tehran, Iran, Monday, Jan. 4, 2016. Allies of Saudi Arabia followed the kingdom's lead and began scaling back diplomatic ties to Iran on Monday after the ransacking of Saudi diplomatic missions in the Islamic Republic, violence sparked by the Saudi execution of al-Nimr. (AP Photo/Vahid Salemi)

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Tensions continue in Saudi Arabia-Iran relations

Kuwait sides with Saudi Arabia in escalating tension with Iran. CNN has reaction from Saudi Arabia's capital city.

Tensions continue in Saudi Arabia-Iran relations

Kuwait sides with Saudi Arabia in escalating tension with Iran. CNN has reaction from Saudi Arabia's capital city.