Sydney dog shot with four 'projectiles'

A dog has been shot in the spine, lung and ribs in western Sydney, with a man and his teenage grandson being spoken to by police.

Four projectiles were found inside the dog after it was rushed to the vet by its distressed Cecil Park owners on Monday night.

The projectiles cannot be removed without the animal dying, police said. 

Police have since seized several firearms including an air rifle from a Cecil Park property, while a 66-year-old man and 14-year-old boy are assisting police with inquiries.