The Globe and Mail says Canadian fighter pilots have been accused of killing civilians in a January air strike in Iraq, though it's unclear who is making the allegation.
The Canadian Armed Forces told The Globe that they have found no evidence to support the allegation, but encourage anyone with information to come forward.
The military tells the newspaper that the accusation was made by someone who "heard of these potential casualties through a second-hand account," but gives no further details.
Canada's CF-18 Hornets have been involved since late last year in a U.S.-led air bombing campaign to help Iraqi troops reclaim ground captured by extremists.
Canadian fighter aircraft also began air strikes in Syria in April.