South Korea will use sanctions against North Korea until they succeed in discouraging Pyongyang's development of nuclear weapons, its foreign ministry said Friday. 
The pledge comes two days after North Korea test-fired two intermediate-range ballistic missiles in defiance of international sanctions designed to deter its development of nuclear weapons and their delivery systems. 
"We will consistently implement sanctions against North Korea over a sufficient timeframe until they have an effect, based on examples like that of Iran," the ministry said in a report to the National Assembly's foreign affairs and unification committee carried by Yonhap News Agency. 
"We will continue to encourage the faithful implementation of U.N. Security Council resolutions, strengthening the standalone sanctions by key states, and the international community's pressure on the North," it said.

Source ; QNA