Man stabbed in Sydney domestic incident

A man is in police custody after another man, believed to be his brother, was stabbed at a home in Sydney's southwest.

Emergency services were called to a Bankstown home about 5.40pm on Thursday where they found a 21-year-old man suffering a wound to his shoulder.

A 25-year-old man has been taken into custody over the domestic incident and the alleged victim has been taken to Liverpool Hospital where he has been treated for the non-life threatening injury.