A man is fighting for his life following a vicious dog attack in western Sydney.

Authorities rushed to a property on Kildare Road in Doonside around 11 a.m. after receiving reports of the incident.

Upon arrival, officers discovered that the man had been mauled by multiple dogs.

The 54-year-old received immediate medical attention from paramedics at the scene before being transported to Westmead Hospital, where his condition is listed as critical.

In response, Blacktown City Council has taken six dogs from the location.

A council representative confirmed that three of the dogs are slated to be euthanized.

“At the request of the owners, three dogs, believed to be of the cross Bull Arab type, were voluntarily surrendered to Council and have been euthanised,” the spokesperson said in a statement.

“Preliminary information indicates the incident began when several large dogs attacked smaller dogs on the property.

“Council is committed to community safety and will continue to support police as enquiries continue.”