Haley decried the membership of countries like China, Cuba and Venezuela that are themselves accused of rights violations.
Both leaders have strong incentives to declare the meeting a success, regardless of what happens.
North Korea threatened to scrap a historic summit next month between Kim Jong Un, and U.S. President Donald Trump.
North Korea is moving ahead with plans to close its nuclear test site next week, South Korea's military said Tuesday.
Secretary of State Mike Pompeo said the U.S. will need to "provide security assurances" to North Korea's Kim Jong Un.
Staging a still-of-the-night arrival ceremony, President Donald Trump welcomed home three Americans freed by North Korea.
Three Americans detained in North Korea are on their way back to the U.S. with Secretary of State Mike Pompeo.
UNAMA released a report saying that a total of 36 people were killed in the April 2 attack.
The event may serve as a dramatic setup to Kim's crucial nuclear negotiations with President Donald Trump.
The leaders of North and South Korea played it safe, repeating a previous vow to rid the Korean Peninsula of nuclear weapons.