London, April 26 -- The Strait of Hormuz remains largely empty of merchant ships, with only a few Tehran-linked vessels moving through the waterway, following a tense week that saw Iranian gunboat attacks and tanker interceptions by the US Navy. As of Saturday morning, observable traffic was down to only two very small fuel carriers and one tiny coastal cargo ship, all with ties to Tehran, leaving the Persian Gulf through the crucial waterway, vessel-tracking data compiled by Bloomberg show. No ships were observed on their way in. While Iran continues to fill supertankers with millions of barrels, the US Navy has stalled several of them near the maritime border with Pakistan before they can leave the Gulf of Oman into the Arabian Sea. Vesse...