UNITED NATIONS/SEOUL—The U.N. Security Council unanimously voted on September 11 to step up sanctions on North Korea, with its profitable textile exports now banned and fuel supplies capped, prompting a traditionally defiant threat of retaliation against the United States.
Monday’s decision, triggered by the North’s sixth and largest nuclear test this month, was the ninth such resolution unanimously adopted by the 15-member Security Council since 2006 over North Korea’s ballistic missile and nuclear programs.





