North Korea ? North Korea has stopped disabling its nuclear reactor in Yongbyon and is now undertaking “thorough preparations” to restart it, a diplomat from Pyongyang said Friday.

North Korea stopped disabling the Yongbyon complex as previously agreed to because the U.S. has not kept its end of a disarmament-for-aid deal, Hyun Hak Bong told reporters at the border.

“We are making thorough preparations to restart” the facility, he said. He did not say when it would be running again.

The White House had no immediate reaction on the North Korean plans.