VIENNA (Sputnik) — Executive Secretary of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) Lassina Zerbo expressed on Sunday doubt in the authenticity of North Korea's recent hydrogen bomb test.
"North Korea: the explosion was not sufficiently powerful to call it a hydrogen bomb, but the hypothesis that the fission was doped by hydrogen isotopes is plausible," Zerbo wrote in his official Twitter account.
Corée/Nord: #explosion pas assez puissante pour une #BombeH; mais l'hypothèse d'une #fission dopée aux #isotopes de l'hydrogène plausible…
— Lassina Zerbo (@SinaZerbo) January 10, 2016
North Korean Supreme Leader Kim Jong-Un said Sunday that Pyongyang ‘s alleged hydrogen bomb test was an act of self-defense carried out in a defining year for the North Korean ideology’s revolutionary cause.
North Korea declared itself a nuclear power in 2005 and conducted nuclear tests in 2006, 2009 and 2013, having earlier withdrawn from the Nuclear Non-Proliferation Treaty.