Authorities say a pack of escaped dogs mauled three young siblings in California, leaving a 5-year-old girl in critical condition.

Police Sgt. Jeff Deckers says the dogs — a mastiff and four pit-bull mixes — escaped a Fontana backyard Monday afternoon and attacked a mother walking with her four children.

Deckers says the mastiff pulled the girl from her mother's hand and shook her violently. She has a punctured lung, broken ribs and bites and is on a ventilator.

Deckers says her brother, who's about 7, also was hospitalized after needing 237 staples to close a leg wound. The girl's sister, who's about 8, was treated for leg and arm injuries.

Deckers says an officer shot one of the dogs. The others were impounded and the owners could be ticketed.