An outbreak of African swine fever in Poland near the German border is killing wild boar as officials try to keep the infectious viral disease from spreading.
Authorities are adding to a special fence that has been built to keep the wild boar away from hog farms.
Hunters are also being encouraged to eliminate all wild boar in some areas.
Earlier this year, amid protests from animal rights groups, hunters killed 270,000 wild boar in eastern Poland in an effort to prevent the disease from spreading.
African swine fever, which poses a threat to swine herds but does not affect people, has never been found in Canada and federal officials are trying to keep it that way.