A worldwide online petition has been launched urging Prime Minister David Cameron to explain why there is no active investigation into the disappearance of Ben Needham, from Sheffield.
An initial online petition, for people from the UK to sign, called for more Government funding and resources to help find Ben and attracted 20,000 signatures.
But with petitions requiring 100,000 names to trigger a parliamentary debate campaigners have now launched a new petition, which can be signed worldwide.
Ben disappeared in July 1991 whilst playing outside a farmhouse his grandparents were renovating in the village of Iraklis on the Greek island of Kos.
He was only 21 months old.
A spokeswoman for the Help Find Ben campaign group said: “We are asking David Cameron why there is no active investigation into his disappearance and why the Government will only follow up leads as and when they are forthcoming.
“Ben deserves a full follow up investigation with new technology and now the MET has obtained Ben’s DNA we feel with a new investigation Ben can be found. Please please help reunite the Needham family - they have waited too long.”