WASHINGTON (AP) - A U.S. research institute says new satellite imagery offers further signs that North Korea has restarted a nuclear reactor capable of producing plutonium for bombs.
North Korea announced plans in April to restart the reactor at Nyongbyon that was shuttered in 2007 under a disarmament deal.
Satellite imagery in late August showed steam coming from an adjacent generator building, suggesting North Korea was in the process of starting it up.
The U.S.-Korea Institute at Johns Hopkins School of Advanced International Studies says a photo from Sept. 19 shows hot water being released through a drainpipe that is part of a cooling system for the five megawatt reactor, showing it's operating and its generators are producing power.
The analysis is being published Wednesday on the institute's website.