Officers have seized 53 dogs from a Worksop property after buyers reported their puppies falling seriously ill shortly after purchase.
Nottinghamshire Police searched the property on Friday as part of an investigation into the suspected unlawful sale and breeding of puppies. The operation was supported by Bassetlaw District Council and the Animal Welfare Investigations Project (AWIP).
All 53 animals were seized due to welfare concerns. Tragically, five of the rescued puppies have since had to be euthanised after testing positive for canine parvovirus, a highly contagious and potentially fatal disease that can cause severe vomiting, diarrhoea, dehydration and lethargy.
A 33-year-old man from Worksop voluntarily attended a police station on Saturday and was interviewed under caution in connection with the investigation. A dog believed to be an XL Bully was also seized during the raid, along with several mobile phones.

PC Kerry Eames said: "The evidence seized during the operation will now be reviewed as part of our ongoing inquiries into suspected offences connected to the unlawful breeding and sale of puppies."
Several buyers had reported that puppies showed symptoms shortly after being brought home, with some facing significant veterinary bills and considerable emotional distress.
Councillor June Evans from Bassetlaw District Council's licensing team said the dogs had been kept in "appalling conditions" and welcomed the joint action taken to stop the operation.
"Dog breeding licensing is in place to ensure that the health and welfare of dogs can be monitored," she said. "It also means that people can buy a puppy from a licensed breeder with greater confidence that the dog has been well cared for and is in good health."
Serena James from the AWIP added: "We hope this action reassures the public that allegations of this nature are treated seriously. We would encourage anyone who believes they may have information relevant to this investigation to come forward."
The rescued puppies are currently in the care of AWIP and are in isolation while awaiting fostering.