The federal government has sent letters to at least five people linked to extremist activity, including the man thought to be the mastermind of a plot to bomb downtown Toronto in an effort to terrorize Canadians and cripple the economy, telling them their citizenship is being revoked, CBC News has learned.

Zakaria Amara is among three members of the so-called Toronto 18 — the other two are Asad Ansari and Saad Khalid — who were informed by letter they were being stripped of citizenship under Bill C-24, dubbed the Strengthening Canadian Citizenship Act, passed last May.

Two others not linked to the Toronto 18, but who have received letters, are:
■Mohamed Hersi, convicted of trying to join the Somalia-based extremist group al-Shabaab. Hersi's lawyer, Paul Slansky, confirmed his client received the letter.
■Hiva Mohamme Alizadeh, convicted in an Ottawa in a terror plot.

CBC News is working to confirm reports that others linked to extremist activity have received similar letters.

http://www.cbc.ca/news/canada/toronto-18-ringleader-citizenship-1.3245319