The submarine went missing on Wednesday. The Indonesian Navy hasn’t received any radio messages from the submarine since Wednesday.
The Indonesian Navy is now searching for the submarine. The Australian Navy and the US Navy are helping Indonesia search for the submarine. They are using planes and boats in the search.
Submarine – A ship which travels underwater.
Island – A small part of land in the ocean.
Missing – Can’t be found.
Radio – A device (like a phone) that the Army/Navy use to communicate.
Search – To look for something.
Navy – The army/military in the ocean.