President Donald Trump on Thursday said US and North Korean officials are continuing to prepare for a scheduled diplomatic summit next month, even as Pyongyang threatened in recent days to pull out of what would be a historic first meeting between a North Korean leader and US president.

Video capturing the last moments of a fugitive Moammar Gadhafi on October 20, 2011 is still available online.

After North Korea threatened to withdraw from talks, the White House is trying to manage expectations. CNN's Barbara Starr reports.