In November, detectives attached to Riverina Police District established Strike Force Alysse to investigate the disappearance of the 58-year-old Port Macquarie woman.

As investigations continue, police are seeking the help of two people who may have been camping in the Neils Bend Murray River Nature Reserve on Tuesday, October 22.

The two people, believed to be aged in their late 50s to 60s, may reside in the Tumbarumba area and possibly drive a 100 series Toyota Landcruiser or similar vehicle. They have been described as having a dual axle caravan with distinctive yellow s-core pig-tail gas lines on twin gas bottles mounted on the caravan A-frame.

Police believe the couple intended to camp at Neils Bend for the week and may have been in the area on the October 26-27, when it is believed the missing woman was camping there with her estranged husband, Gary Ridley.

Police would like to hear from the couple or anyone who may know their identity as they may be able to assist with the investigation.

Police believe Mrs Ridley travelled from her home in Port Macquarie to Tumbarumba where her estranged husband lives on Friday, October 18 in a dark blue Mitsubishi Pajero.

The Pajero was found in Shelley, Victoria, 86 kilometres away on Tuesday, October 29 with the body of her 61-year-old estranged husband inside.

A crime scene was established by Victorian Police who are leading the investigation into the circumstances of his death. A post-mortem examination will be conducted to determine the cause of death.

The caravan was located the next day in Tumbarumba.

Anyone with information should contact CrimeStoppers on 1800 333 00 or Strike Force Alysse Detectives on 6947 7119.

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