A superyacht linked to sanctioned Russian billionaire Alexey Mordashov has navigated the Strait of Hormuz , a highly sensitive shipping lane at the epicentre of the US-Iran conflict, shipping data has revealed. The passage marks a rare transit through a waterway that has seen severe restrictions since February. The 142-meter (465-foot) vessel, named Nord and valued at over $500 million, departed a Dubai marina on Friday afternoon, crossed the strait on Saturday morning, and reached Muscat early on Sunday, according to MarineTraffic platform data. It remains unclear how the luxury yacht secured permission to traverse the route. Iran has significantly curtailed traffic through the strait, which typically handles approximately one-fifth of the world's oil supply. Daily passages through the crucial waterway, located at the entrance to the Gulf, have plummeted to just a handful of mainly merchant vessels, a stark contrast to the average of 125 to 140 daily transits before the Iran war commenced on 28 February.…