Washington: US President Donald Trump on Tuesday said possible talks between North Korea and South Korea held mixed potential, while sanctions were beginning to take a toll on Pyongyang amid tensions over its nuclear and missile programs.

‘Sanctions and ‘other’ pressures are beginning to have a big impact on North Korea. Soldiers are dangerously fleeing to South Korea,’ Trump wrote in a post on Twitter.

‘Rocket man now wants to talk to South Korea for first time. Perhaps that is good news, perhaps not - we will see!’ Trump added in reference to North Korean leader Kim Jong Un.