Recordings from a merchant ship near the Strait of Hormuz reveal that the U.S. Navy is maintaining its blockade of Iranian ports and coastal areas. On June 15, U.S. forces were heard on public radio channels warning ships not to breach the blockade and ordering vessels to return to Iranian ports. This comes despite the announcement on June 14 of a ceasefire memorandum of understanding between the U.S. and Iran, with a formal signing ceremony scheduled for June 19 in Switzerland. President Trump had announced the immediate lifting of the naval blockade on social media on June 14.