|The U.S. Air Force's WC-135 Constant Phoenix sniffer plane.|
The Yonhap News Agency (South Korea) reports:
The U.S. Air Force dispatched a nuclear sniffer aircraft Thursday to the east of the Korean Peninsula amid the possibility of North Korea's imminent nuclear test, a government source said.
"The WC-135 Constant Phoenix, a special-purpose U.S. plane, made an emergency sortie today over the East Sea," the source said, requesting anonymity.
Its mission is to collect samples from the atmosphere in order to detect and identity a nuclear explosion.
There was an unconfirmed rumor that North Korea has notified China of its nuclear experiment plan.
South Korea's military said earlier the North seems all set to conduct what would be its sixth nuclear test at its Punggye-ri site in its northeastern region anytime on the leadership's decision.