(CNN) China's ambassador to Canada has accused his host government of "Western egotism and white supremacy" over their handling of the case of Huawei executive Meng Wanzhou, amid an escalating dispute between Ottawa and Beijing.

"Recently, China's competent authorities took compulsory measures in accordance with the law against two Canadian nationals who are suspected of engaging in activities that endanger China's national security. Some Canadians and some in the Canadian news media, in disregard of China's judicial sovereignty, accused China of arbitrary detention and demanded their immediate release," Lu said.

"However, on the prior groundless detention of Chinese citizen Meng Wanzhou by Canada at the behest of the United States, these same people made utterly different comments ... It's understandable that these Canadians are concerned about their own citizens. But have they shown any concern or sympathy for Meng after she was illegally detained and deprived of freedom?"

Since Meng's arrest, 13 Canadian citizens have been detained in China, according a report by the Globe and Mail.

Read More