South Korean and US officials are trying to confirm whether recent movements at North Korea's suspected nuclear testing site indicate the reclusive regime is planning another test blast, news reports said Saturday.
Seoul is keeping a close watch on the movement of trucks and soldiers at the Punggye-ri site in the country's remote northeast, Yonhap news agency reported, citing several unidentified military officials.
"It is clear there are movements at Punggye-ri after the (previous) nuclear test," one military official was quoted as saying. "We are closely monitoring to see if these are preparations for a second nuclear test."
Another official confirmed activities at the site, but said another test "is not believed to be imminent," according to Yonhap.
Meanwhile, an unidentified South Korean official said intelligence agencies had detected a new building being erected at the suspected nuclear site, the JoongAng Ilbo newspaper reported Saturday.