The article took a tone normally reserved for North Korea's overt enemies - Washington, Tokyo and Seoul.
Without directly using China's name, but referring to it as "a neighboring country, which often claims itself to be a 'friendly neighbor,'" the Korean Central News Agency report accused Beijing of essentially abandoning North Korea in favor of the United States by cutting off imports of coal in compliance with United Nations sanctions.
DPRK is short for North Korea's official name, the Democratic People's Republic of Korea.
It added that China has "unhesitatingly taken inhumane steps" to comply with UN sanctions.
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The article, uncharacteristically for the news agency, carried a byline, Jong Phil.
China on Sunday began a suspension of all coal imports from North Korea for the rest of the year as it increases pressure on it in line with UN Security Council sanctions imposed in November in response to the North's fifth nuclear test two months earlier.
North Korean coal exports to China totaled USD 1.2 billion last year, according to Chinese customs statistics. US officials say that represents about one third of North Korea's total export income.
Beijing has come under pressure from US President Donald Trump to lean harder on North Korea, but says its influence is limited.
It has, however, also grown increasingly frustrated with North Korea's defiance of UN demands it end missile tests and development of nuclear weapons.