Of the 34 ships that have circumvented the blockade, at least 19 are tankers linked to Iran that have exited the Gulf. The other 15 have entered the Gulf from the Arabian Sea, heading towards Iran. Of the 34 ships that have circumvented the blockade, at least 19 are tankers linked to Iran that have exited the Gulf. The other 15 have entered the Gulf from the Arabian Sea, heading towards Iran.