The head of Iran's Revolutionary Guards has suggested there could be armed resistance in Bahrain after the Sunni Muslim-ruled kingdom's top Shia cleric was stripped of his citizenship.

Shia Muslims in Dhaka today protested the execution of a prominent Shia cleric carried out by the Sunni Muslim majority Saudi Arabia on January 2.

Kuwait says it is recalling its ambassador to Iran as a regional row over the execution of a Shia cleric in Saudi Arabia deepens.

Saudi Arabia used an attack on its embassy in Tehran as a pretext to fuel tensions, Iran's foreign ministry says in response to Riyadh's severing of relations.

US expresses concern that Saudi Arabia's execution of prominent Shia cleric Sheikh Nimr al-Nimr could further exacerbate sectarian rivalry in the Middle East.