SUNDAY TIMES WEB DESK: John McCallum had embarrassed Trudeau’s Liberal government by saying Huawei Technologies Co Ltd Chief Financial Officer Meng Wanzhou could make a strong argument against being sent to the United States.

Opposition legislators and former ambassadors accused McCallum of unacceptable political interference in an affair which has severely damaged relations between Canada and China.

Meng, the daughter of Huawei’s founder, was arrested in Vancouver last month over alleged violations of U.S. sanctions on Iran.

China subsequently detained two Canadian citizens on national security grounds. A Chinese court later retried a Canadian man who had been jailed for drugs smuggling and sentenced him to death.

“Last night I asked for and accepted John McCallum’s resignation as Canada’s ambassador to China,” Trudeau said in a statement that did not explain his reasons.

Veteran diplomats and experts told media it was the first time a Canadian ambassador had ever been officially fired.