https://www.theguardian.com/technology/2018/dec/09/china-summons-us-ambassador-over-huawei-cfos-arrest

Terry Branstad urged to cancel arrest warrant for Meng Wanzhou and end her ‘egregious’ detention

China has summoned the US ambassador in Beijing to protest about the detention of a senior Huawei executive in Canada after US law enforcement officials issued a warrant for her arrest last week.