Iran's Guards say Saudi Arabia will face backlash for executing Nimr -Mehr

DUBAI (Reuters) - Iran's hardline Revolutionary Guards said Saudi Arabia's ruling Al Saud family would face a backlash for executing a prominent Shi'ite cleric on Saturday. "A harsh revenge will strike the Al Saud in the near future and cause the fall of this pro-terrorist, anti-Islamic regime," the Guards said in a statement carried by the Mehr news agency. The Sunni kingdom executed Nimr al-Nimr and three other Shi'ites along with dozens of al Qaeda members, stirring sectarian anger across the region. (Reporting by Sam Wilkin; Editing by Kevin Liffey)