Iran's Islamic Revolutionary Guard Corps (IRGC) on Wednesday claimed responsibility for a drone strike targeting a US naval facility in Bahrain, opening a new front in the rapidly escalating confrontation between Tehran and Washington and triggering fresh concerns over stability in the Gulf.

Iran war news LIVE: Weeks of indirect talks marked by tit-for-tat threats and sporadic exchanges of fire have failed to secure a deal to end the Middle East war or reopen the Strait of Hormuz, a chokepoint for Gulf oil and gas shipments.

Tensions between Iran and the United States have seemed to flare again, with America intercepting Iranian missiles and drone attacks on allies in the Middle East. Track Iran US War Highlights here.

US-Iran War News Live Updates: The US and Iran have been engaged in largely indirect negotiations to secure an interim deal to halt the three-month-old war that would leave issues including Iran's nuclear programme to further negotiations.