OTTAWA — Top officials in the Prime Minister’s Office, including Prime Minister Justin Trudeau’s chief of staff, did not know of two “major instances” of suspect foreign interference in Canada until Canada’s spy agency tabled documents at a public inquiry in recent months.

The fact that Trudeau’s closest advisers weren’t aware of two of six major suspected incidents of foreign interference until the Public Inquiry into Foreign Interference (PIFI) further highlights issues with how intelligence was or was not disseminated within government in recent years.