Iran’s powerful Revolutionary Guards have warned Saudi Arabia that they will suffer a “harsh revenge” following the execution of Sheikh Nimr al-Nimr. Iran have warned that “the unjustly spilled blood of this oppressed martyr will no doubt soon show its effect and divine vengeance will befall Saudi politicians.” Express.co.uk reports: The move appeared to end any hopes that the common enemy of ISIS could lead to rapprochement between the two countries. Nimr was considered a terrorist by Riyadh but hailed in Iran as a champion of the rights of Saudi Arabia’s marginalised Shia Muslim minority. Outraged Iranian protesters stormed the Saudi Embassy in Tehran early on Sunday morning leaving a trail of destruction One photograph posted on Twitter showed a baying mob outside the embassy with small fires burning inside. Another showed a room inside the building with smashed furniture strewn across the floor. The scenes bore a striking resemblance to the 1979 hostage crisis in which 52 Americans were held for 444 days when a group of Iranian students stormed the US embassy. Shortly afterwards, Iran’s Foreign Ministry issued a statement calling for calm and urging protesters to respect the diplomatic premises. The executions have drawn international condemnation, with United [...]