North Korea's economy is improving despite stiff sanctions imposed by the international community, the country's state-run daily said Wednesday.

According to the Rodong Sinmun, an organ of the ruling Workers’ Party of Korea, the isolationist country's national economy has been reinvigorated "as if it were a living thing which received the blood of vitality."

In an article titled "Self-supporting power of Korea," the newspaper claimed that all the people are making strenuous efforts to build an economically strong and prosperous country that "the United States and its allies will be surprised to know is undergoing a period of growth."

North Korea has consistently maintained that the U.S. and its allies fabricated U.N. Security Council Resolution 2270 in a sinister ploy to isolate and suffocate North Korea. Pyongyang's leadership has consistently claimed that outsiders are preventing North Korea from building a thriving country and improving the people's living standard.

"However harsh the U.S. economic sanctions against the DPRK are, it will prove ineffective due to the might of the country's self-supporting national economy and single-minded unity," the daily said.

The DPRK stands for the Democratic People's Republic of Korea, the North's official name.

The Rodong Sinmun further said the country has shown to the world the astonishing power of its self-supporting national economy, which is the only viable strategy for the North to follow as it strives for victory in its struggle against the United States. It said this stance will help elevate the country to the height of a strong and prosperous country.

"We have achieved 100 percent local production of the Kwangmyongsong-4 satellite which was launched on Feb. 7 and the subway train 'Red Flag' which started operation on Jan. 1 this year," the daily said, adding that the country has made such great achievements under the worst conditions created by the enemy's blockades and sanctions.

The North has persistently said that the long-range rocket launched last month was intended to send a satellite into space.

Few outsiders have accepted the view and speculated that the rocket was launched to test the country's ballistic missile technology.

North Korea watchers say the newspaper's latest reports are intended to boost the spirits of people from all walks of life in the North ahead of the seventh Congress of the Workers' Party to be held in May this year. (Yonhap)