North Korea will launch another nuclear test in next few days, officials say
"...North Korea’s nuclear preparations prompted the U.S. military in recent days to move a surveillance aircraft used to test the air following nuclear explosions to the region. The Air Force WC-135 Constant Phoenix arrived in Japan and will be used to patrol the area off the Korean peninsula in the coming days, according to a separate official. Secretary of State Rex Tillerson..."
Reference: www.foxnews.com .