North Korea expanding weapons-grade uranium plant, satellite images suggest

Experts believe works at Yongbyon nuclear facility could allow production of bomb-making material to increase by up to 25%

Recent satellite images appear to show North Korea is expanding a uranium enrichment plant at its main Yongbyon nuclear complex, with experts saying the move shows an intent to boost the production of bomb materials.

The assessment comes after North Korea recently raised tensions with its first missile tests in six months amid long-dormant nuclear disarmament negotiations with the US.