North Korea Withdraws From Liaison Office Set Up During Koreas Summit

North Korea informed South Korea on Friday that it would stop participating in the liaison office north of the border in Gaeseong city, Vice Unification Minister Chun Hae-sung told reporters. The North Koreans said they were “pulling out with instructions from the superior authority,” Chun said. North Korea has in recent days expressed irritation toward Seoul after leader Kim Jong Un’s nuclear summit with President Donald Trump broke down last month over U.S.-backed sanctions squeezing the country’s economy.