The arrest of a CFO may have started a diplomatic incident.

Canadian Prime Minister Justin Trudeau says his government had no involvement in the arrest of Meng Wanzhou, chief financial officer of Chinese telecoms giant Huawei, whose release China is demanding.

Wanzhou, the daughter of Huawei’s founder, was detained at Vancouver airport on a US extradition request.

The issue will do nothing to help US-China trade relations- which until a few days ago looked to be lurching toward a trade war.