he fort was constructed in 1840 although its origins likely come from a 16th-century Portuguese fortification.^[3] An analysis of artefacts from the fort by an excavation team from Oxford Brookes University have suggested the site may have been first occupied from the Umayyad or early Abbasid era. There was also evidence of the site periodically being submerged underwater.^[4] The rectangular fort with four circular towers was built by Abdullah bin Ahmed Al Khalifa and served as a sister fort to Arad Fort, guarding the passageway of Muharraq Bay. In 1868, the fort was destroyed by British warships intervening in the Qatari–Bahraini War.