I have lost 4 hounds in a similar manner here in Northwestern Ontario and know of several more.
I actually saw a wolf kill a dog just south of Cornucopia, WS. One bite thru the head of 60lb Plott dog.
European wolves are a whole different kettle of fish and i chuckle at guys locally who think they know of dog the could stand up to our local wolves.
Had a woman get cut up by one last week in Red Lake,ON trying to protect her dog while out on a walk. It was a black wolf and some people have been saying it must have been a bear because wolves don’t attack people. Yeah right! And some bears just don’t hibernate with 3ft of snow and -40.