Saudi Arabia's execution of prominent Shiite cleric Nimr al-Nimr was intended to fuel Sunni-Shiite strife and "set the region on fire", a lawmaker from Iraq's ruling Shi'ite coalition told al-Sumaria TV Saturday. "This measure taken by the ruling family (of Saudi Arabia) aims at re-igniting the region, provoking sectarian fighting between Sunnis and Shiites," Mohammed al-Sayhud said, according to the TV station's website. Seperately, a prominent cleric with close links to Iran's ruling establishment denounced al-Nimr's execution Saturday and predicted the repercussions would bring down the Saudi ruling family. "I have no doubt that this pure blood will stain the collar of the House of Saud and wipe them from the pages of history," Ayatollah Ahmad Khatami, a member of the Assembly of Experts and a Friday prayer leader, was quoted as saying by the Mehr news agency. "The crime of executing Sheikh Nimr is part of a criminal pattern by this treacherous family ... the Islamic world is expected to cry out and denounce this infamous regime as much as it can," he added.