Man shot dead in Sydney's west

A man has been shot dead at a home in Sydney's west.

Police say emergency services were called to a Wentworthville home just before 8pm on Monday, with paramedics finding the man with a gunshot wound to his leg.

Despite their efforts, the man - believed to be aged in his 40s - died at the scene.

Police have set up a crime scene as detectives investigate the circumstances of the shooting.