Daughter Arrested For Allegedly Killing Mum 18 Years Ago

Police have made a startling breakthrough in the Sydney cold case murder of Irene Jones.

A 45-year-old woman is expected to be charged over the murder of her mother in the city's southwest 18 years ago, with police alleging a financial motive for the killing.

Police found Jones' body when investigating reports of a break-and-enter at her Lansvale home on November 2, 2001.

A post-mortem found the 56-year-old had died from strangulation and a stab wound to the neck.

The case went cold but 18 years later police have made an arrest. Image: Supplied

Officers from the Unsolved Homicide Unit on Tuesday morning arrested Jones' daughter outside her unit in Bondi Junction.

Police say the daughter, then aged 27, staged the robbery and went to a neighbour's property and alerted police.

"Police will allege that there was a financial motive," Detective Inspector Stewart Leggat told reporters in Sydney.