North Korea said Tuesday that it is ready to detonate hydrogen bombs capable of wiping out the United States "all at once," claiming that it has succeeded in developing miniaturized nuclear weapons, according to Yonhap News Agency.

North Korea's latest nuclear test helped the North "get fully armed with smaller and standardized H-bombs for ballistic rockets and get possessed of ultra-modern strike means for delivering nuclear bombs of various kinds," the Korean Central News Agency said in its commentary.

North Korea conducted what it claimed is its first successful test of an H-bomb on Jan. 6, which has invited doubts from the U.S. and South Korea over credibility. The North carried out nuclear tests in 2006, 2009 and 2013.

The North has insisted that its nuclear test was an act of nuclear deterrence for self-defense in the face of what it claims is Washington's hostile policy toward Pyongyang.

The KCNA said that the latest test was neither to "threaten" anyone nor to "provoke" for a certain purpose, repeating its claims of self-defense.

Source: MENA