Police investigating Sydney mother's mysterious disappearance

A Sydney mother who has been missing for three months has been revealed as the wife of an international Bitcoin millionaire.

Madeline Bigatton, 48, was last seen at her South Sydney home on March 25.

Home CCTV captured the woman getting into her black Kia Sorento SUV at approximately 11.30am and driving away.

The car was found later that night at Cape Solander in Kurnell.

NSW Police have released these images of missing Sydney woman Madeline Bigatton. Source: Twitter/NSW Police

On Tuesday NSW Police released a picture of Mrs Bigatton as her relatives search desperately for answers to her disappearance.

The wife of former life coach-turned-Bitcoin entrepreneur John Bigatton is described as being of Caucasian appearance, about 160-170cm tall, of slim build and with shoulder-length brown hair.

She was last seen wearing a khaki green singlet, three-quarter pants, and was carrying a black and white bag.

Police conducted an extensive search of the Kurnell area after Mrs Bigatton’s car was located.

The keys to the vehicle were found by two men on the morning after her disappearance.

St George Detectives are now appealing for the two men, described as being of Indian appearance, to contact them.

Anyone with information is encouraged to call  Crime Stoppers on 1800 333 000 or use the Crime Stoppers online reporting page.