IRGC Navy Commander warns that vessels switching off their navigation systems in the Strait of Hormuz will be treated as adversaries, adding that Iran will not relinquish control over the security of the waterway, Telegram reports

Rhetoric from IRGC naval commanders on the Strait of Hormuz is a recurring feature of periods of heightened tension between Iran and Western or regional powers, and has historically functioned more as signalling than as a prelude to sustained disruption. The specific reference to vessels switching off navigation systems targets a practice associated with sanctioned-cargo dark fleets rather than mainstream commercial shipping, a distinction that matters for how the threat is read: enforcement aimed at AIS-dark tonnage pressures the shadow trade in Iranian and sanctioned crude, while any implication for conventional tanker traffic is what historically moves freight rates, war-risk insurance premia, and the prompt crude structure. Past episodes of Hormuz rhetoric have tended to lift tanker rates and add a modest geopolitical premium to crude at the front of the curve, with the premium fading where no physical interference follows. The tells worth watching are whether the rhetoric is matched by seizures, harassment incidents, or changes in transit behaviour, and whether Western naval presence in the waterway is reinforced, since escalation in this corridor has previously been incremental rather than sudden. The Telegram sourcing and the absence of any operational action alongside the statement keep this, for now, in the category of verbal signalling.