A WOMAN has been arrested but released without charge after a baby's body was found at a home in southern NSW.

Police searched the house in Corowa in the Murray River region on Wednesday night after hearing concerns about the welfare of a three–month–old boy.

There they found the body of a child.

The body was located in a freezer, according to a report in the Sydney Morning Herald.

A 40–year–old woman was arrested and taken to Albury Police Station.

She was released on Thursday morning.

Police say investigations are ongoing, with Strike Force Walumil established to investigate the incident.

A post–mortem examination will be held to determine the cause of death.

The home is now a crime scene and specialist forensic officers are examining it. –AAP