The RSPCA is appealing for information after three dead puppies wrapped in a t-shirt were found in Holbeach St John.
A member of the public discovered the puppies in the Joys Bank area during the early evening of April 15 and reported the matter to the RSPCA.
They said it could be the puppies were still born.
RSPCA Inspector Daniel Bradshaw said: “These poor little puppies had been loosely wrapped in a t shirt and were then left behind in some conifers – these had recently been cut down and that’s when the puppies bodies were discovered.
“While there were no obvious signs of injury, neglect or foul play, we would like to know what happened to these dogs.
“We would like to get in touch with the owner to make sure there aren’t any more puppies which might be having problems.”
“If anyone has any information about what happened to these puppies, we urge them to contact the RSPCA Appeals Line on 0300 123 8018.”