North Korea tests an H-bomb - level 2
North Korea says that it successfully tested a miniaturized hydrogen bomb. If true, this would be the fourth nuclear test by the isolated country.
North Korea says that it will continue its nuclear programme to protect itself against the USA. It also said that it will be a responsible nuclear state – it will not give a nuclear bomb to other parties.
Leaders across the world responded to this news. The Japanese Prime Minister said that Japan could not tolerate North Korea's nuclear testing.
Difficult words: miniaturized (small), hydrogen bomb (people also it call the H-bomb; a type of a very powerful nuclear bomb), party (a group of people).