A $1 million reward has been announced for information about the disappearance of Melbourne girl Eloise Worledge 50 years ago today.

Eloise, then aged eight, was reported missing by her parents on the morning of Tuesday, January 13, 1976.

She was last seen in her bed at about 11.40pm at the family’s Scott Street home in Beaumaris, the previous night.

Eloise Worledge, eight, disappeared from her Beaumaris home 50 years ago today, on January 13, 1976. (9News)

Her parents found the flyscreen on her window cut and rolled open, and nothing else seemingly taken from her room.

The eldest of three children, Eloise was described as a quiet, intelligent child who would not have left home voluntarily.

Her disappearance has always been treated as suspicious and over the past five decades, police have conducted an exhaustive investigation to try and determine the circumstances of her disappearance and who is responsible.

At the time of her disappearance, police conducted one of the then-largest search operations in Victoria.

More than 250 police were deployed over 18 days, conducting a systematic ground search of Beaumaris and nearby suburbs, including parks, reserves, vacant properties, and the foreshore.

Police also canvassed more than 6000 properties in the area.

Eloise’s disappearance sparked a major outcry. (9News)

No trace of Eloise was found.

Over the years, detectives have spoken with thousands of people, including undertaking multiple interviews of family, friends, neighbours and school contacts.

A taskforce was initially set up in 1976 to investigate Eloise’s disappearance and the investigation has remained active since that time.

There have been multiple reviews, including by the Homicide squad in the early 2000s, and the Missing Persons Squad in 2023.

No trace of Eloise has ever been found. (9News)

An inquest in 2003 returned an open finding, with the coroner stating it was not possible on the evidence gathered to determine who was responsible for Eloise’s disappearance.

Since she vanished, there have been no confirmed sightings of Eloise and police believe she was murdered.

A reward of $10,000 was posted at the time of Eloise’s disappearance, which is now being increased to $1 million.

The reward is currently unique in Victoria as it also includes payment for information that leads to the location of Eloise’s remains, rather than solely identifying who was responsible for her presumed death.

The Director of Public Prosecutions may also grant indemnity to anybody who provides information about the perpetrator.

Anyone with information about the disappearance of Eloise Worledge is urged to contact Crime Stoppers on 1800 333 000 or online.