SEOUL, South Korea — North Korea claimed Sunday that it could wipe out Manhattan by sending a hydrogen bomb on a ballistic missile to the heart of New York, the latest in a string of brazen threats.

Although there are many reasons to believe that Kim Jong Un’s regime is exaggerating its technical capabilities, the near-daily drumbeat of boasts and warnings from Pyongyang underlines the regime’s anger at efforts to thwart its ambitions.

“Our hydrogen bomb is much bigger than the one developed by the Soviet Union,” DPRK Today, a state-run outlet that uses the official acronym for North Korea, reported Sunday.

“If this H-bomb were to be mounted on an inter-continental ballistic missile and fall on Manhattan in New York City, all the people there would be killed immediately and the city would burn down to ashes,” the report said, citing a nuclear scientist named Cho Hyong Il.

The website is a strange choice for issuing such a proclamation, given that it also carried reports about rabbit farming and domestically made school backpacks.

North Korea’s newly developed hydrogen bomb “surpasses our imagination,” Cho is quoted as saying, because it is many times as powerful as anything the Soviet Union had.

“The H-bomb developed by the Soviet Union in the past was able to smash windows of buildings 1,000 kms away and the heat was strong enough to cause third-degree burns 100 kms away,” the report said.