US
South Korean government officials have speculated that Kim Jong Un was behind the murder of his half-brother
Experts warn that underground tests can lead to mountain collapses and leak radiation into the atmosphere
While India has strongly condemned North's nuclear tests, it has maintained diplomatic relations with Pyongyang
Asian, European professors targeted in "vigorous lecturer recruitment campaign"
'Super-majority' would allow Abe to propose changes to Japan's US-imposed constitution
Move would drive Iran towards nuclear proliferation and worsen a standoff with North Korea
Tensions over North Korea's weapons programme have soared in recent months
State Department official open to diplomatic talks for solving North Korean crisis
Poster shows Trump with the body of a dog being decapitated by an axe
US President Donald Trump's continued threats of military action against Pyongyang