North Korea: The media of North Korea announced that they have successfully conducted its fourth nuclear test, which had also triggered an artificial earthquake.

The country had successfully tested a “miniaturised hydrogen bomb” underground on Wednesday morning, describing it as an “act of self-defence” against the US. North Korean claims about the size and type of bomb have not been independently verified by announcement on North Korean television.

An announcement on North Korean television said the country had successfully tested a “miniaturised hydrogen bomb” and describing it as an “act of self-defence” against the US.

The broadcast declared the test as a complete test and said that the procedure was overseen by the country’s leader, Kim Jong-un, who celebrates his 33rd birthday this Friday.

According to a statement, North Korea asserted that it would not abandon its nuclear weapons program as long as the US maintained what it called “its stance of aggression”.

Following the test, a4.9 tremor was experienced and the Pentagon said that it was “looking into reports of a possible seismic event near North Korea’s nuclear facilities,”

South Korea’s presidential office, meanwhile, has convened an emergency security meeting in Seoul.

A senior research fellow Yang Uk at the Korea Defence and Security Forum, said: “Given the scale it is hard to believe this is a real hydrogen bomb. They could have tested some middle stage kind (of device) between an A-bomb and H-bomb, but unless they come up with any clear evidence, it is difficult to trust their claim.”