The Ontario SPCA is seeking court approval to euthanize 21 dogs seized in an alleged dog fighting ring in Tilbury.

OSPCA and Chatham-Kent police seized about 40 dogs after executing a search warrant at a residence on Morris Line in October.

Authorities say the animals were found in various health conditions and were individually assessed by a veterinarian.

SPCA inspector Brad Dewar confirms three dogs were humanely euthanized due to health and medical concerns.

Dewar says an application is before the courts to have another 21 dogs  put down.

The matter is expected to heard next month.

Three individuals are facing more than 270 charges in relation to this case.