A child has sustained serious facial injuries after being attacked by a dog in Melbourne’s north-west.

Emergency services were called to a property on Spearfelt Court in Cairnlea at 3.20pm.

The 11-year-old has been taken to the Royal Children’s Hospital in a serious condition.

The boy was rushed to hospital by ambulance after being bitten in the face. (9News)

Police say they believe the boy was at the residence when he was bitten by Doberman cross.

Local rangers are attending the and will remove the dog which has been temporarily secured in the rear yard.

The investigation into the incident is continuing.

The attack comes just days after 61-year-old Leo Biancofiore was mauled to death by the family's pet American Staffordshire Terrier.

Leo Biancofiore was in a wheelchair and unable to defend himself. (Supplied)

His wife, 58-year-old Donita, was rushed to hospital with serious injuries.