China has accused two Canadian nationals of spying and stealing national secrets.
The men were detained in December following the arrest of Huawei's top executive in Canada for breaching US sanctions on Iran.
The Canadian justice department has now approved the beginning of extradition proceedings for Meng Wanzhou, who is suing the country for "serious breaches" of her civil rights.
North America correspondent William Denselow reports:

Netanyahu: Israel wants to start peace talks with Lebanon 'as soon as possible'
Iran says peace talks would be 'unreasonable' following Israeli strikes
Four dead as migrants try to board dinghy off northern France
Israel launches fresh strikes on Lebanon after huge attacks jeopardise truce
Israeli fire kills student in Gaza, medics say
