Saudi Arabia on Saturday summoned the Iranian Ambassador in Riyadh and conveyed a strong protest against Iran's ‘hostile’ remarks on executions carried out by the Kingdom, state news agency SPA said. The Ministry expressed "the Kingdom's astonishment and its utter rejection of these hostile statements, which it deemed a blatant intervention in the kingdom's affairs", SPA said. Earlier on Saturday, Iranian protesters stormed the Saudi Embassy in Tehran as Shi'ite Muslim Iran reacted with fury to Saudi Arabia's execution of a prominent Shi'ite cleric. Demonstrators who had massed at the embassy gates to protest at Nimr al-Nimr's execution broke into the Embassy and started fires before being cleared away by the police, Iran's ISNA news agency reported. Shortly afterwards, Iran's Foreign Ministry issued a statement calling for calm and urging protesters to respect the diplomatic premises, the Entekhab news website reported. Iran's hardline Revolutionary Guards had promised "harsh revenge" against the Saudi Sunni royal dynasty for Saturday's execution of Nimr, considered a terrorist by Riyadh but hailed in Iran as a champion of the rights of Saudi Arabia's marginalized Shi'ite minority. (Reuters)