SEOUL - North Korean leader Kim Jong Un reaffirmed his commitment to 'complete' denuclearisation of the Korean peninsula and to a planned meeting with US President Donald Trump, South Korean President Moon Jae-in said on Sunday. Moon and Kim agreed at a surprise second meeting on Saturday that a possible North Korea-US summit, currently planned for June 12 in Singapore, must be held successfully, Moon told a news conference in Seoul. Moon, who returned to Seoul on Thursday morning after meeting Trump in Washington in a bid to keep the high-stakes U.S.-North Korea summit on track, said he delivered Trump's 'firm will' to end the hostile relationship with North Korea and pursue bilateral economic cooperation.