South Korea's plans to expand economic cooperation with the North now hang in the balance, after the second summit between United States President Donald Trump and North Korean leader Kim Jong Un ended without the signing of an agreement to ease some sanctions against the regime.

South Korean President Moon Jae-in, who has pushed for the easing of sanctions as an incentive to get the North to give up nuclear weapons, was even slated to unveil details of a new inter-Korean cooperation policy today, on the 100th anniversary of an independence movement against colonial Japanese rule.