South Korean President Moon Jae-in attends a news conference in Berlin, Germany July 5, 2017. REUTERS/Michele Tantussi

SEOUL (Reuters) - South Korean President Moon Jae-in ordered discussions to be held with the United States on deploying additional THAAD anti-missile defense units following North Korea’s test launch of an intercontinental ballistic missile, his office said on Saturday.

Moon also wanted the United Nations Security Council to discuss new and stronger sanctions against the North, the presidential Blue House said following a National Security Council meeting.

Two units of the Terminal High Altitude Area Defence (THAAD) anti-missile system have been deployed by the U.S. military in a southern South Korean region, with four more planned but delayed over concerns about their environmental impact.