Captured from CNN website

New satellite imagery reveals a previously undeclared North Korean facility that experts suspect could be used to build nuclear warheads, CNN reported Wednesday.

The images, captured by Planet Labs and analyzed by experts at the Middlebury Institute of International Studies, show an active facility in the village of Wollo-ri near Pyongyang, the report said.

"It has all the signatures of a North Korean nuclear facility ― security perimeter, on-site housing, monuments to unpublicized leadership visits, and an underground facility.

And it sits right next to a bottled water factory that has none of those characteristics," Jeffrey Lewis, a professor at the institute, was quoted as saying.

"The big thing that sticks out is all the vehicle traffic ― cars, trucks, shipping containers. This factory is very active. That activity has not slowed down ― not during negotiations and not now. It's still making nuclear weapons," he told CNN.

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