The mother was apparently not in the house when he was attacked because she had been at a family event following a bereavement.
PLEASE NOTE: HOUSE NUMBER HAS BEEN PIXELATED BY PA PICTURE DESK
Police outside a house in Falkland Road, Sunderland, where a baby has died after he was bitten by a dog. PRESS ASSOCIATION Photo. Picture date: Saturday June 20, 2015. Northumbria Police said the three-week-old boy was taken to hospital after he was bitten by a small terrier. See PA story POLICE Dog. Photo credit should read: Dave Higgens/PA Wire