a u . s . nuclear - rated submarine collided with a japanese oil - tanker in the straits of hormuz late last night . only minor damage to the tanker and no serious accidents were reported . the uss port news submarine collided with the head of the japanese gasoline - van , sustaining minor damage to the vessel . no person on either craft were seriously injured , us navy and japanese military agencies said . the straits of hormuz connect the arabic gulf to the arabian sea and is a major waterway for oil barges .
Two submarines have collided.