Test on Wednesday is met with a burst of jubilation and pride in Pyongyang

The defense ministry and spy agency of the Republic of Korea on Wednesday questioned whether the Democratic People's Republic of Korea had tested a hydrogen bomb given the tiny size of seismic activity caused by the hydrogen device detonation.

ROK's Vice-Defense Minister Hwang In-moo told reporters after a meeting with lawmakers of the ruling Saenuri Party that "for now, it is unlikely" for the DPRK to have succeeded in testing a hydrogen device, according to local media reports.