Six sick puppies who were dumped on a doorstep may have been bred to be Christmas presents, the RSPCA has said.
A resident found the lurcher pups after answering a knock at the door in Halebourne Lane, Chobham, Surrey.
The charity said the dogs, believed to be five or six weeks old, have parvovirus, a potentially deadly bug common among puppy-farmed dogs.
RSPCA inspector Rob Jackson said: "It is just unbelievable. No animal deserves this kind of treatment."
The charity has named the young lurchers after some of Santa's reindeers - Cupid, Dasher, Blitzen, Rudolph, Prancer and Dancer.
Mr Jackson said: "To dump an animal at any time of year is heartless but to do it just before Christmas is callous.
"These poor pups are young and still very much dependent on their mum.
"They were just left on that doorstep on a cold, wet winter's day without a second thought."
The pups are receiving care at RSPCA Millbrook and Mr Jackson appealed for help to catch those who dumped them on 14 December.
Centre supervisor Claire Jones said: "It is so sad. These puppies needed urgent vet attention.
"They are very poorly, we are doing everything we can for them."