a u . s . fission - powered tanker collided with a japanese oil - merchant in the straits of strait late last night . only minimal damage to the tanker and no internal injuries were reported . the hms washington reports submarine collided with the stern of the japanese auto - tanker , causing severe repairs to the tanker . no personnel on either warship were seriously injured , us navy and foreign government reports stated . the straits of shatt connects the persian passage to the arabian sea and is a principal waterway for oil tankers .
Two submarines have collided.