Hormuz Blockade Ship Traffic

At least four ships, including a U.S.-sanctioned Chinese tanker, were seen crossing the vital waterway on the first full day of the blockade.

Tracking data showed the vessels making unusual U-turns or stopping near Iranian ports before proceeding through the strait.

The U.S. military maintains that its warships have issued warnings to multiple vessels, forcing them to turn back.

The conflicting reports highlight the difficulty of sealing off one of the world's busiest energy chokepoints, as some shipowners take calculated risks to defy the blockade.