Middle East tensions boil as Saudi Arabia cuts ties with Iran

By Sam Wilkin DUBAI (Reuters) - Iran accused Saudi Arabia on Monday of using an attack on its embassy as a pretext to sever ties in a diplomatic crisis deepening their often violent struggle for influence across the Middle East. Saudi Arabia cut ties with Iran on Sunday and fellow-Sunni Bahrain followed suit on Monday, two days after Iranian demonstrators stormed the Saudi embassy in Tehran in protest at Riyadh's execution of a senior Shi'ite cleric. The United Arab Emirates (UAE) also downgrade