Police ask for help to find three-year-old

Police are appealing for help to find a three-year-old girl last seen almost three weeks ago in regional Victoria.

Ella Wilson was last seen in Fulford Court in Swan Hill on May 4 but only reported missing on Thursday.

Police are unable to say why they weren't told earlier but believe the child may be with family or friends in the area.

Images of Ella have been released and anyone with information should contact Swan Hill Police.