Canberra is facing a hefty fine from the NRL after coach Ricky Stuart refused to answer media questions and banned his players from talking after their 24-12 loss to Brisbane.

Stuart walked out of the post-match press conference refusing to answer questions at Canberra Stadium on Saturday night, apparently fuming at some of the refereeing decisions.

"Todd Greenberg (NRL's head of football), he was at the game tonight, and I just really hope he saw what I saw," he said.

"It's a lot healthier for our club if I don't go any further into this press conference.

"In respect to all the media, it has nothing to do with you, but it's just a lot healthier if I don't continue."

Stuart then said "thanks" before walking out of the room with captain Jarrod Croker.

Media were not allowed to speak to any of the Raiders post-match, at Stuart's request.

The defeat was Canberra's third in a row and their fifth from sixth matches at home.

AAP