At least six vessels crossed the Strait of Hormuz in the last 24 hours, a fraction of normal traffic.
Daily traffic averages about seven ships, far below the pre‑war level of 125‑140 vessels per day.
The vessels, mainly dry bulk carriers, included the US‑sanctioned Vast Plus chemical tanker traveling through Iranian waters.
President Donald Trump urged Iran to sign a deal as US talks stall, with reports of extending the port blockade.