An unidentified young girl has been found safe and well after police made an extraordinary appeal for information amid concerns for her safety earlier this week.

Victoria Police said the girl was located in Australia after a warrant was executed.

No arrests have yet been made over the search, police said.

Images of the girl were released on Tuesday, with police saying they believed she was between the ages of four and six when the images were taken on May 24.

In the appeal for information Leading Senior Constable Julie-Anne Newman said a television in the background of the pictures indicated they were taken in Australia.

"Other factors known to police are that the girl appears to be in an apartment or similar which is well furnished, with modern, large windows and is possibly overlooking a city skyline or other tall structures," she said in a statement.

"An AFL game is being played 'live' on a television in the background, so it is thought that the girl is within Australia."

On Friday afternoon police thanked the public and media for their assistance.

Police said they could not provide any more information as the matter was still under investigation.