At least three rooms were illuminated by night at the top of the Pyongyang Ryugyong Hotel this October, suggesting construction may have resumed at the ill-fated pyramid-shaped building.

The development, captured in video exclusively obtained by NK News, is notable because there has been no sign of construction at the iconic structure since window panes and a telecommunications mast were added in 2011.

Three rooms beneath an aircraft warning light can be seen in the video, illuminated across two different floors near the very top of the 105-floor building. The lights suggest a stable electricity connection exists to the very highest point of the building.

A regular