Some who worry about their dogs are 11-year-old Betty Sjölund Granberg with the dog Doris and Edith Glader who has the dog Bailey.
They read in the newspaper about the attacks.
-We usually have the dog loose, but nowadays we have her on a leash because we are afraid that someone will have posted something for her to eat, says Betty Sjölund Grönberg to little Aktuellt.
No suspects
The police in Malmö have received reports of pieces of glass in buns, sausages and pieces of chicken with sharp objects and glasses, which have been placed in dog kennels and in other, strategic places for dogs.
- The worst thing about this is that we do not know who does it, says Nils Norling, the police spokesperson in Malmö, says Nils Norling.
Hear in the clip above what the police and dog owners say.