Man shot by police in Glen Alpine in Sydney's south-west

A 21-year-old man has been shot in the stomach by police in Glen Alpine in Sydney's south-west during an alleged domestic violence-related incident.

Police were called to a home in Glen Alpine about 12:25pm following reports a man had made threats, and encountered a man allegedly armed with a pistol.

The man was shot during an alleged confrontation with officers, according to police.

Officers performed first aid before paramedics continued to treat the man before he was taken to hospital in a serious condition.

A woman was taken to hospital for shock.

Threats made before shooting

Assistant Commissioner Stacey Maloney said police were en-route to the address when threats were made via a Triple Zero (000) call, allegedly towards a woman in the home.