Traffic through the Strait of Hormuz, a vital waterway between Iran and Oman, has been heavily disrupted since the start of the Middle East war in late February.
Daily crossings are currently around a third of pre-war figures, with the situation further complicated by rerouted shipping lanes and the ongoing risks posed by sea mines and attacks on vessels.
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Here is what we know about how vessels are currently crossing.
What are the different routes?
