a u . s . nuclear - powered ship docked with a japanese coal - tanker in the straits of hormuz late last night . only substantial damage to the tanker and no fatal injuries were noted . the uss newport news submarine collided with the rear of the japanese fuel - tanker , leaving severe damage to the tanker . no those on either ship were directly impacted , pakistan navy and japanese government forces said . the straits of strategically connect the persian gulf to the indus sea and is a major channel for oil kc-135 .
Two submarines have collided.