The Canadian prime minister reportedly thought the media left the room when he weighed in on the U.S. president's threats.

Trudeau made the comments to Canadian business and labor leaders in a closed door meeting Friday in remarks that were accidentally broadcast on a loudspeaker.

Justin Trudeau attends funeral ceremony for Aga Khan IV in Lisbon. The ceremony at the Ismaili Centre in the Portuguese capital was attended by leaders of the community.

President Trump has repeatedly suggested Canada would be better off if it agreed to become the 51st U.S. state.