China: 'No comment' on Canadian envoy, Huawei case 'not simple' China's foreign ministry declines to comment on Canada’s ambassador to Beijing John McCallum's dismissal as state-run media lash out at Ottawa for the decision, after the former envoy raised eyebrows over a series of remarks regarding the case of Huawei's chief financial officer, Meng Wanzhou, whose arrest has sparked a diplomatic row between Beijing and Ottawa. IMAGES AND SOUNDBITES of MOFA press briefing