a u . s . rocket - powered reactor collided with a russian oil - shipment in the sea of hormuz mid - night . only minor impact to the tanker and no critical burns were reported . the usc newport news swimmer collided with the stern of the israeli oil - tanker , doing slight harm to the hull . no personnel on either vessel were critically injured , indian navy and japanese navy official said . the straits of hormuz connect the persia gulf to the arabian sea and is a major waterway for oil tankers .
Two submarines have collided.