Young sisters missing in Melbourne

Concerns are held for two Melbourne sisters missing for 10 days.

Chynah and Summer Liumaihetau, aged 13 and 12, were last seen at Albanvale on August 19 and police believe they may be with their mother, Helen Liumaihetau.

The girls are known to use trains and frequent Coburg and Melbourne's northern and western suburbs, police said on Thursday while releasing images of them.