At least one Iranian sailor has died and 15 others were injured after Iran struck its own ship in a naval ‘accident’ in the Gulf of Oman. State media said the vessel has sunk. The friendly fire incident happened during a naval exercise on Sunday near the port of Jask, some 1,270 kilometres (790 miles) southeast of Tehran, in the Gulf of Oman, state TV said. The missile struck the Konarak, a Hendijan-class support ship, taking part in the exercise. State television described the missile strike as an accident, saying the Konarak had remained too close to the target. The Konarak had been putting targets out in the water for other ships to fire upon, it said. A local hospital admitted 12 sailors and treated another three with slight wounds, the state-run IRNA news agency reported. Iranian media said the Konarak had been overhauled in 2018 and was able to launch sea and anti-ship missiles. The Dutch-made, 47-metre (155-foot) vessel was in service since 1988 and had capacity of 40 tons. It usually carries a crew of 20 sailors. Iran regularly holds exercises in the region, which is closed to the strategic Strait of Hormuz, the narrow mouth of the Persian Gulf through which 20 percent of the world’s oil passes. The US Navy’s 5th Fleet, which monitors the region, did not immediately respond to a request for comment. Iranian media rarely report on mishaps during its exercises, signaling the severity of the incident. “The vessel was hit after moving a practice target to its destination and not creating enough distance between itself and the target,” state television said on its website. Iran’s army confirmed that one sailor had died and said that “investigations” had begun. Iranian media rarely reports on military mishaps, signifying the severity of the incident.