The Huawei Technologies Co. chief financial officer whose detention in Canada has sparked a diplomatic standoff has filed a civil lawsuit against Canadian authorities, alleging she was wrongfully detained and searched.

Meng Wanzhou claims that her constitutional rights were breached and is seeking damages for "false imprisonment." The suit was filed March 1 in the Supreme Court of British Columbia against the Canadian Border Services Agency, a Royal Canadian Mounted Police officer and the Canadian government.

The notice alleges that the police officer and several border guards detained, searched and interrogated Meng under the guise of a routine customs or immigration case, and used "that opportunity to unlawfully compel her to provide evidence and information." It alleges they did so without immediately arresting her under the warrant to avoid affording Meng her constitutional rights.