Three people have been arrested after a body was found at a home in Sydney's north-west.

Police were called to a home on Gleness Place, Glenorie, which is about 44 kilometres north-west of Sydney CBD, about 11am.

Police found what they believe to be human remains at the home.

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A crime scene has been established and homicide squad detectives are investigating, detectives.

The death is being treated as suspicious.

Two men and a woman were arrested nearby.

Police said they were assisting detectives with their inquiries.

More to come.

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