A two-week-old B.C. girl is being treated in hospital for significant injuries she sustained in a dog attack by her family’s Pitbull-Rottweiler cross-breed on Sunday.

The 16-day-old infant was rushed to hospital with significant head and facial injuries after the dog attack early Sunday, police said.

The incident happened in Saanich, B.C., where police say the dog had lived with the family for about 17 years. It’s not known why the dog attacked the child.

The dog’s owners agreed to euthanize the animal, but police say they are still mulling whether to lay criminal negligence charges in the case.

“Any time an attack like this happens, we have to look at the criminal side,” said Const. Nawid Akbar of Saanich Police. “However, all accounts are leading to it just being an unfortunate accident. A very tragic event.”

Investigators have contacted child protective services.

With files from CTV Vancouver