Tankers and cargo vessels are seen in the Gulf of Oman, along shipping routes linking the Strait of Hormuz and the Arabian Sea, Tuesday. AP-Yonhap

PARIS — Shipping through the Strait of Hormuz stayed at a trickle Tuesday, maritime trackers indicated, two days after the U.S. promised to reopen it under an agreement with Iran to end their war.

As of 1500 GMT on Tuesday, tracking platform Kpler had detected just four crossings of the strategic waterway that day by vessels carrying raw materials.

Five were detected on Monday — a similar rate to traffic during the week before the US-Iran agreement to end the Middle East war, announced late Sunday.

"The Strait of Hormuz continues to operate below normal commercial levels, despite signals of diplomatic progress," Kpler said on X.