South Korea reveals "blackout bomb" that can wipe out North Korea's grid

The graphite bomb would cover Pyongyang’s electrical facilities in carbon graphite filaments which would shut down the country’s power grid and nullify its nuclear threat.

A South Korean military spokesman told the country’s Yonhap news agency: ‘All technologies for the development of a graphite bomb led by the Agency for Defence Development have been secured.

‘It is in the stage where we can build the bombs anytime.’