US President Donald Trump agreed Tuesday to meet with South Korea's President Moon Jae-in on the sidelines of the UN General Assembly later this month in New York, the White House said.

Moon, who discussed with Trump efforts to achieve the denuclearisation of North Korea, told the US president he was sending a special envoy to Pyongyang Wednesday to meet with Kim Jong-Un, the North's leader, White House press secretary Sarah Sanders said. "They agreed to meet later this month on the sidelines of the UN General Assembly in New York," she said of Trump and Moon.