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SEOUL (Reuters) - South Korea is considering levying its own sanctions on North Korea as the isolated state ramps up tension with its missile and nuclear provocations, the South’s vice foreign minister said on Wednesday, but no decision had been made yet.

Vice Foreign Minister Lim Sung-nam made the remarks at a news conference in Seoul with Deputy U.S. Secretary of State John J. Sullivan and Japanese Vice Foreign Minister Shinsuke Sugiyama.