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:

1 killed, 13 injured after Russian ballistic missiles rock Kyiv, officials say
US ends eighth consecutive night of strikes on Iran
Lebanese soldier killed as army vehicle hits explosive in south Lebanon
Firefighters, oil worker injured following two fires sparked by Iranian attacks
Two US service members in Jordan killed in Iranian attack
