Man arrested over fatal stabbing of nephew in Darwin

A man has been arrested over the alleged stabbing death of a 37-year-old man, believed to be his nephew, in Darwin's northern suburbs overnight.

Emergency services were called to a home in Malak about 9.35pm after receiving reports a man had suffered a stab wound to his chest.

The man was found in the backyard of the unit complex before paramedics performed CPR.

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The man died at the scene.

A 34-year-old man was arrested at the scene and remains in custody.

Police expect him to be charged later today and believe the alleged victim is his nephew.

A crime scene has been established with major crime detectives taking over the investigation.

Support is available from the National Sexual Assault, Domestic Family Violence Counselling Service at 1800RESPECT (1800 737 732).