A four-year-old boy was mauled to death Monday by a dog in Liverpool, U.K., the Times of London reported.

The child, named John-Paul Foulkes, was attacked by a mastiff at the home he shared with his 63-year-old grandmother.

She suffered multiple bite marks as she wrestled to free her grandson from the dog’s jaws. The boy was so severely injured he died at the scene.

Dog handlers and armed response officers answered an emergency at the house, where neighbors described the brown and white dog’s “hellish” barking. Following a safety assessment, the animal was shot dead on the spot.

“We heard a terrible barking that went on for more than 20 minutes. It was a hellish, blood-chilling noise and we wondered what could be going on," said neighbor Lawrence Crewe.

“A few minutes later we heard two gunshots and the barking stopped. Only now we know the full horror of what has happened."

Click here for more from the Times of London.