Man arrested over Adelaide death

A 39-year-old man has been arrested over the suspected murder of a 53-year-old man whose body was found in the backyard of an Adelaide property.

The body was found at the Greenwith home on Monday with a post mortem examination determining his death was suspicious.

On Tuesday, detectives arrested a man at nearby Ridgehaven address and he is currently helping them with their inquiries.

They say he is expected to be charged with murder.