The Victorian Office of Public Prosecutions (OPP) has determined there is not enough evidence to charge anyone with the death of Myrtleford toddler Daniel Thomas more than 11 years ago.

Coroner Jacinta Heffey last July ruled Daniel died in October 2003 because his babysitter Mandy Martyn inflicted injuries that led to the two-year-old’s death, and ruled that his mother, Donna Thomas, also contributed through her inaction.

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In one of Victoria’s most high-profile unsolved murder cases, the OPP advised detectives they did not have sufficient evidence to lay charges after a new brief was submitted in November.

A Victoria Police spokeswoman said in a statement on Sunday: “Victoria Police has received advice from the OPP regarding this matter today and they do not believe there is sufficient evidence to proceed further at this time.

“The investigation remains open and anyone with further information is encouraged to contact Crime Stoppers.”

In 2003 Daniel was being cared for by his babysitter, Martyn, when he was reported missing.

His remains were found by a dog under a house in Myrtleford five years later.

The investigation remains open.

Anyone with information should phone Crime Stoppers on 1800 333 000