Police are investigating after a man was shot dead at a home in Sydney’s west overnight.

NSW Police say that officers from Cumberland Police Area Command were called to a home at Wentworthville just before 8pm on Monday night following reports of a shooting.

A man aged in his 40s was found with a gunshot wound to his leg. NSW Ambulance paramedics attempted to save the ma but he died at the scene.

A crime scene has since been established and specialist forensic officers will investigate as local detectives attempt to determine the circumstances surrounding the incident.