The Chinese Foreign Ministry on Wednesday slammed a "groundless" and "vicious" accusation by a U.S. official that China is meddling in the U.S. election and voiced strong condemnation. 

U.S. National security adviser Robert O'Brien had said that "Chinese hackers were targeting U.S. election infrastructure in the lead up to the November 3 presidential election." 

Spokesperson Wang Wenbin said China has always adhered to the non-interference principle, adding that China has no interest and has never interfered in U.S. election. 

On the contrary, the international community knows clearly who is interfering in the internal affairs of other countries, Wang said, urging the U.S. to stop meddling in China's internal affairs, and stop groundless accusations and smears against China.