North Korea said on Saturday that it has carried out "another crucial test" at its satellite launch site and the results would be used to strengthen its "reliable strategic nuclear deterrent".
The unspecified test took place from 10.41 p.m. to 10.48 p.m. on Friday at the Sohae Satellite Launching Ground, better known as the Dongchang-ri site, Yonhap News Agency reported citing the North's official Korean Central News Agency (KCNA) as saying.
It did not say what was tested.
"The research successes being registered by us in defence science one after another recently will be applied to further bolstering up the reliable strategic nuclear deterrent," the KCNA said.
Friday's test came after the North conducted what it called "a very important test" at the satellite launch site on December 7, sparking concern that the communist nation could be preparing to launch a long-range rocket.
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