Following the Iranian Revolution, Bahraini Shia fundamentalists in 1981 orchestrated a failed coup attempt under the auspices of a front organisation, the Islamic Front for the Liberation of Bahrain. The coup would have installed a Shia cleric exiled in Iran, Hujjat al-Islam Hādī al-Mudarrisī, as supreme leader heading a theocratic government. The Bahraini government unofficially regarded the coup as Iran attempting to overthrow their Sunni government. Iran denied all knowledge saying the fundamentalists were inspired by the Iranian revolution but had received no support from Iran. Fearful of a recurrence, the episode caused Bahrain to crack down on its Shia population putting thousands into jail and further souring relations with Shia Iran. Recently the countries are beginning to enjoy closer relations again and have engaged in many joint economic ventures. Iran has been severely critical of Bahrain hosting the US navy Fifth Fleet within the Persian Gulf.