Chinese Foreign Ministry spokesman Geng Shuang said on Monday that Canadian Prime Minister Justin Trudeau's sacking of his ambassador to China was an internal Canadian affair after the envoy prompted a furor with comments about the extradition case of Huawei chief financial officer Meng Wanzhou.

Chinese Foreign Ministry spokesman Geng Shuang speaks at the daily news briefing, January 28, 2019. [Photo: cctv.com]

"This is an internal affair for Canada. China will not comment," Geng told a daily news briefing in Beijing.

"It is self-evident to both the Chinese people and the international community that the extradition case of Meng is by no means a purely judicial case. There are strong political attempt and manipulation behind it," he added.

Geng reiterated China's call for Canada to "make the correct choice" and release Meng so she could return to China.

Canada's former ambassador to China John McCallum has resigned on Friday at the request of Canadian Prime Minister Justin Trudeau, abruptly ending his diplomatic career.

In a statement, the Canadian prime minister said: "Last night I asked for and accepted John McCallum's resignation as Canada's ambassador to China."

McCallum's resignation came a week after his comments on the extradition of Meng Wanzhou at a Chinese language press conference in Toronto that caused controversy in Canada.

He said he thought Meng had a good case to fight extradition to the U.S. and listed three examples that he thought could help her.