Greek authorities removed the corpses of five wild horses from a canal in the Evros Delta near the border with Turkey on Wednesday.
The five animals, a male, two females and two foals, were found floating in the water by local fishermen. The corpses were in an advanced stage of decay.
A veterinarian confirmed that they had been shot in the neck.
Locals have expressed their dismay at the killings and levied accusations against a group of local farmers who had been complaining that horses destroy crops.
The Evros Delta is home to about 30 wild horses that belong to the Pindos breed.
Most of these horses are descendants of those abandoned during the Greek civil war, between 1944 and 1949.
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