Satellite images may show reprocessing activity at North Korea nuclear site - U.S. researchers

A view of what researchers of Beyond Parallel, a CSIS project, describe as the Radiochemistry Laboratory at the Yongbyon Nuclear Research Center in North Pyongan Province, North Korea, in this commercial satellite image taken April 12, 2019 and released April 16, 2019. CSIS/Beyond Parallel/DigitalGlobe 2019 via REUTERS

WASHINGTON (Reuters) - Satellite images from last week show movement at North Korea's main nuclear site that could be associated with the reprocessing of radioactive material into bomb fuel, a U.S. think tank said on Tuesday.

Any new reprocessing activity would underscore the failure of a second summit between U.S. President Donald Trump and North Korean leader Kim Jong Un in Hanoi in late February to make progress toward North Korea's denuclearisation.