The RSPCA is appealing for information after the bodies of seven dogs were found at stables.
The terriers were found in boxes, bags and suitcases at Croes Llwyd farm in Croesyceiliog, Torfaen, and the RSPCA says one was probably buried alive.
RSPCA inspector Emma Smith described the discovery on 26 August as "grim", adding: "It seems that these animals endured very painful deaths."
Anyone with information is asked to call the RSPCA on 03001234999.
The animals' bodies were decomposing and had probably been at the farm near Cwmbran for a considerable length of time, said the RSPCA.
One dog was found in a small wooden box in which it would have had no room to turn around.
There were visible scratch marks in the box indicating that the dog had probably been buried alive.
http://www.bbc.co.uk/news/uk-wales-11249854
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