U.S. President Donald Trump has departed for his second summit with North Korean leader Kim Jong-un set for Wednesday and Thursday in Hanoi.

Trump boarded Air Force One at Joint Base Andrews near Washington at 12:34 p.m. on Monday.

Tweeting from the presidential jet before departure, Trump said that he is looking forward to a "very productive" summit.

In a separate tweet earlier in the day, Trump said that North Korea could rapidly become an "economic powerhouse" through "complete denuclearization," adding Kim will make a "wise decision." 

Shortly before his departure from the White House, Trump expressed optimism during a gathering of governors that he expects a "very tremendous summit," adding that he wants denuclearization on the Korean Peninsula.

The Vietnamese Foreign Ministry said Trump will arrive in Noi Bai International Airport in Hanoi at 8:30 p.m. Tuesday local time, which is 10:30 p.m. on Tuesday in Korea.