Man arrested after Melbourne house death

Caroline Schelle
AAP

A man has been arrested after a man died and a woman was injured at a house in Melbourne's west.

Police say a 44-year-old man died at the house at McGregor Court in Sunshine West about 8.30pm on Saturday and the 42-year-old woman was found with "non-life threatening" injuries.

A 46-year-old Sunshine West man was arrested at the scene and is in police custody. All parties are believed to be known to each other, police say.

The man's death is being investigated by the homicide squad.