SEOUL (Reuters) - Time was running out for the United States to formulate a new strategy to revive denuclearisation talks, a senior North Korean diplomat said on Thursday, as a U.S. envoy for North Korea is set to visit South Korea ahead of President Donald Trump's trip.
Negotiations have been stalled since a second summit between Trump and North Korean leader Kim Jong Un in the Vietnamese capital of Hanoi in February collapsed over differences between U.S. calls for complete denuclearisation and Kim's demands for sanctions relief.