A family dog that mauled two young girls and their grandmother has been trapped inside their southwestern Sydney home until a dog catcher can subdue the animal.
Police and paramedics arrived to a home in Nelson Street, Fairfield, at about 4.45pm (AEDT) on Wednesday following reports of a dog attack.
A police spokesman said the pet Staffordshire terrier turned on three family members and attacked them.
A 10-year-old girl suffered multiple bite marks and lacerations and a possible fractured arm.
Her 12-year-old sister and grandmother were bitten several times by the dog and suffered a series of cuts.
All three victims were treated at the scene and taken to Fairfield Hospital in a stable condition.
The dog has been trapped inside the family home until a dog catcher arrives to secure the animal and take it away, police said.
Police will liaise with the local council to determine whether the dog should be put down.