Father of China's H-bomb dies at 93 in Beijing

Yu Min, a prominent nuclear physicist known as the father of China's hydrogen bomb, died in Beijing on Wednesday at the age of 93.

The China Academy of Engineering Physics first announced Yu's death online, and the Chinese Academy of Sciences, where Yu is an academician, also confirmed his death.

Yu had been involved in China's theoretical research of nuclear weapons since 1960. For the next 28 years, Yu and his work remained top national secrets. Not even his wife, Sun Yuqin, knew what he was doing, according to Yu's biography published in Science and Technology Daily.