Shipping through the Strait of Hormuz, the vital chokepoint for roughly one-fifth of the world's oil supply, remained severely restricted Saturday as Iran continued to control access and limit transits more than three days after a fragile U.S.-Iran ceasefire took effect.

Maritime tracking data showed only 5 to 20 vessels passing through the narrow waterway in the past 24 hours — well below the normal daily average of about 60 ships — with the majority linked to Iranian interests. Independent analysts described traffic as operating at less than 15% of pre-crisis levels, leaving hundreds of tankers and bulk carriers stranded or delayed inside the Persian Gulf.