A 64-year-old man was apparently walking his dog around 2:30 p.m., in the area of Sandys and McNaughton Ave when he and his dog were attacked by an American bulldog that was off its leash.
In the process of defending his animal, the victim suffered serious bites to his hand and was taken to hospital.
The suspect animal has been handed over to the Pet and Wildlife Rescue.
Anybody with any information is urged to contact PAWR.