The bodies of 84 Iranian sailors killed in a torpedo attack by a US submarine last week in the Indian Ocean are due to be flown home on Friday, Sri Lanka's defence ministry has said.

The seamen were among 130 thought to be aboard the Iranian warship, the Iris Dena, when it was sunk on 4 March about 40km (25 miles) from Sri Lanka's southern coastline.

A police escort transferred bodies to Mattala Rajapaksa International Airport on Friday morning for the repatriation to Iran, after they were stored in two freezers at Galle National Hospital.

Sri Lanka said 32 sailors rescued by its navy after the torpedo attack "will remain in Sri Lanka", according to news agency AFP.

A magistrate in the Sri Lankan city of Galle ordered that the 84 bodies should be released to the Iranian embassy.

US Defense Secretary Pete Hegseth said shortly after the sinking that the Iranian warship had died a "quiet death".

Iran's Foreign Minister Abbas Araghchi said the US had "perpetrated an atrocity at sea, 2,000 miles away from Iran's shores", adding that "the US will come to bitterly regret precedent it has set".

Video released by the US Department of Defense after the incident showed a ship being struck, causing the stern to rise up before exploding.

The Iris Dena had been returning from a military exercise hosted by India when it was attacked.

Its sinking in international waters came during the current US-Israeli war with Iran and marked a dramatic widening of the conflict.

Iran has since launched retaliatory strikes across the Middle East - targeting Gulf countries allied with the US.