South Korean President Moon Jae-in on Thursday unveiled a new policy aimed at deepening ties with Southeast Asia, as the North Asian economic powerhouse seeks to curb its reliance on traditional trading partners like China and the United States.

Moon made Indonesia, Southeast Asia's biggest economy, his first state visit to the region and was accompanied by a delegation of around 200 business leaders.

The "New Southern Policy" aims to better connect South Korea to the Association of Southeast Asian Nations grouping and expand the economic influence of Asia's fourth-largest economy in the region home to more than half a billion people.