President Trump, tweeting from Japan where he is attending the G20 summit, said he's willing to meet North Korean leader Kim Jong Un at the demilitarized zone between North and South Korea, just to "shake his had and say hello."

Trump is scheduled to meet China's President Xi Jinping Saturday during the summit, to discuss trade and tariffs. Trump is due to leave the G20 meeting on Saturday and travel to South Korea, where he is scheduled to meet South Korean President Moon Jae-in.

In a Twitter (TWTR) - Get Report post Saturday morning in Japan, Trump made an offer to meet with Kim.