In response to the American blockade and the proposed transit fees, Iranian officials asserted their permanent jurisdiction over the strategic maritime corridor.
Foreign Minister Abbas Araghchi said, "20% is of course too much. We will be fair."
Diplomatic tensions further escalated as New Delhi summoned Iran's deputy ambassador after an Iranian attack on two tankers killed one Indian seafarer and severely injured 10 others.
European aviation regulators issued safety warnings for regional airspace, and crude oil prices climbed to a four-week high of over $86 a barrel.
Israeli Foreign Minister Gideon Saar commented on ongoing pilot zone discussions aimed at managing troop withdrawals from occupied areas in Lebanon, calling them "the only way forward."
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The bilateral negotiations mediated by the US continue in Rome, though the Lebanese presidency has demanded an immediate Israeli military withdrawal from the designated pilot zones before proceeding with broader discussions.