"The warning came as the U.S. called for a vote on Monday on a draft resolution to tighten sanctions on North Korea, which has repeatedly tested bombs and missiles as it seeks the ability to target the U.S. with a nuclear weapon. Kim threw a banquet over the weekend to reward the scientists and engineers behind the Sept. 3 test, which North Korea said was a hydrogen bomb.
In response, the U.S., South Korea and Japan want the Security Council to implement stronger measures against North Korea, including bans on oil imports, exports of textiles and employment of its guest workers by other countries. They also want to freeze Kim’s assets."
https://www.bloomberg.com/news/articles/2017-09-10/north-korea-warns-u-s-of-retaliation-for-tougher-un-sanctions
In response, the U.S., South Korea and Japan want the Security Council to implement stronger measures against North Korea, including bans on oil imports, exports of textiles and employment of its guest workers by other countries. They also want to freeze Kim’s assets."
https://www.bloomberg.com/news/articles/2017-09-10/north-korea-warns-u-s-of-retaliation-for-tougher-un-sanctions