About the Author
Colin Zwirko
Colin Zwirko is a Senior Analytic Correspondent for NK News based in Seoul. Follow him on Twitter @ColinZwirko.
North Korea appears to have tested a rocket engine at its main spaceport in recent days, NK News analysis of satellite imagery shows, as the U.S. and South Korean conducted joint military drills south of the border.
Planet Labs and Sentinel-2 imagery indicate vegetation died under the Sohae Satellite Launching Ground’s vertical engine test stand between Aug. 28 and 31, suggesting a liquid-fueled engine test occurred in that time.