Gunman on the run after man shot in 'targeted attack' in Sydney's west

A gunman is on the run and a 26-year-old man is recovering in hospital after a shooting in Sydney's west.

Raby Abdul-Rahman waved and smiled to onlookers at Liverpool Hospital after he was shot in the back in Fairfield just after 5.30am.

The gunman fled the scene in a car and is yet to be apprehended by police. 

The Francis Street home has been the site of multiple shootings in recent times, with shots fired there just two weeks ago. 

Police believe today's incident was also targeted.

Neighbours and local residents declined to speak on camera today, telling 9NEWS they were fearful of revenge attacks. 

Mr Abdul-Rahman's family and friends clashed with police as they attempted to secure the scene today.

A 29-year-old man was arrested after breaching the crime scene, just hours after the shooting. 

Police inquiries are ongoing. 

You can get breaking news alerts on your phone by downloading our app, 9NEWS Alerts, available on iPhone and Android.