Report: Seoul Sees Signs of Pyongyang Restoring Part of Missile Launch Site
Specifically, Yonhap said the closed-off country, under pressure for years to discontinue its nuclear program, is putting back a roof and a door on the facility.
South Korea's National Intelligence Service also said during a briefing for the National Assembly's intelligence committee that "the U.S. information is the same as ours," according to Yonhap.
A second summit on denuclearization between U.S. President Donald Trump and North Korean leader Kim Jong Un last week broke down over differences on how far North Korea was willing to limit its nuclear program and the degree of U.S. willingness to ease sanctions on the country.