Many see Pyongyang's recent friendly gestures as a tactical move. The US moved Tuesday to freeze the assets of two North Korean entities, while South Korea accused the North of unleashing a deadly flash flood.
The North, which wants one-on-one talks with the US, said it's open to dialogue and had entered the "completion phase" of developing highly enriched uranium.
The North offered to engage in dialogue, and said sanctions would be met by an acceleration of its nuclear program.
Media reports Tuesday suggest that Pyongyang is prepared to discuss its nuclear program with the US – a significant step back from recent brinksmanship.
As tens of thousands gather in Seoul to mourn the death of the former president, his 'Sunshine policy' is breathing life into fresh North-South talks.
An Iranian company is the first to be penalized as the US uses stricter financial sanctions to curb Pyongyang's weapons program.
US envoy Stephen Bosworth is visiting Beijing, Seoul, and Tokyo, after Pyongyang rejected six-party dialogue and threatened to test another nuclear bomb.
Pyongyang may fulfill a vow to conduct another nuclear test, analysts say. It may also be testing US response.
Did the two women cross into North Korea, or did border guards lure them over?