Gen. Dan Caine told the press Thursday that 13 ships have turned away from the U.S. blockade on the Strait of Hormuz since it began on Monday.

Updated marine traffic map of Iran shows shops near blocked Strait of Hormuz. Latest escalation may impact gas prices. Iran declares blockade 'piracy'

U.S. President Donald Trump announced the blockade after weekend peace talks in Islamabad between the U.S. and Iran failed to reach a deal.