Iran’s publication of a new map asserting wider control around the Strait of Hormuz is deepening the shipping crisis for crews trapped aboard vessels in the Gulf. Reuters reports that more than 20,000 seafarers remain stuck on around 2,000 ships, with some facing delayed pay, limited provisions and growing safety fears as the war-risk environment drags on.

For TankerMap readers, this is not only a humanitarian story but also a shipping operations signal. The longer vessels stay immobilised or subject to opaque transit permissions, the greater the disruption risk for tanker scheduling, port calls, crew changes and cargo flows linked to crude oil, products and LNG moving through Hormuz.