Remarks follow last week's claims the rogue state had successfully tested a hydrogen bomb
A Canadian and an American claim they are international prisoners and are waiting for rescue
The leader called last week's nuclear test "a self defensive step"
The 60-year-old says he has now 'gotten used' to the hard labour
‘Making fun of dictators cannot be enough. Why is it so funny?’
The hermit kingdom’s claim to have tested a hydrogen bomb for the first time has met with incredulity. But the announcement is an ominous reminder of the country’s threat to world peace
The government in Pyongyang claims it successfully tested a thermonuclear device, calling it 'a great stride' for the country
The world’s last Stalinist state shows no sign of changing its strange, dangerous ways
Analysts said the emotional scenes may have been staged by the government
State media did not release any images of the test itself, which is believed to have been carried out underground
If North Korea's claim to have developed and successfully a hydrogen bomb is true, it could threaten large swathes of the biggest superpowers in the world
North Korea has announced that it has tested a hydrogen bomb for the first time. It has run nuclear tests in the past — but the international reaction has been much more panicked this time than before.
The dictatorship's claim to have successfully conducted its first H-bomb test has prompted panic around the world
Revelation appears to show Pyongyang is working on both creating a nuclear bomb and developing ways to launch it
If verified, the test will be the fourth time the state has exploded a nuclear weapon
US Geological Survey reports a 5.1 magnitude quake 30 miles from the site where North Korea carries out nuclear tests