Canada’s spy agency says it will disclose “some information” about foreign interference to Conservative Leader Pierre Poilievre, who has resisted getting the national security clearance he needs to review classified documents about the issue because it would muzzle him.

The Canadian Security Intelligence Service (CSIS) told CBC News on Saturday that it’s determined “the disclosure of some information to the leader of the Official Opposition through a threat reduction measure is appropriate.”

Classified information is typically shared only with people who have an appropriate security clearance and a relevant need to know, CSIS said in a statement.