A man has been arrested following the death of another man in Melbourne, while a woman is in hospital with life-threatening injuries.

Emergency services were called on Saturday night to a house in Bentleigh East, in Melbourne’s southeast, where a man was found with critical injuries.

Police say a physical altercation took place between two males and a female.

One of the males, who is yet to be formally identified, died at the scene.

The female was taken to hospital with life-threatening injuries.

A 20-year-old Bentleigh East man was arrested at the scene.

Police are still investigating the circumstances but believe all three knew each other.

-AAP