Police are appealing for help to locate three siblings who were last seen in Werribee.

Khiara, 15, Dion, 13, and seven-year-old Jamison Meredith were last seen in Songlark Crescent on February 27.

It is believed the children may be with their parents, Zoe Mates and Jesse Meredith.

Victoria Police yesterday released images of the children in the hope that someone may recognise them and be able to provide information as to their whereabouts.

Police have concerns for the welfare of the children.

Khiara is described as 170cm tall, of solid build with shoulder length blonde hair.

Dion is described as 166cm tall, of solid build with short brown hair and may be wearing reading glasses.

Jamison is described as 150cm tall, of average build with long brown hair.

Anyone who sees the children or has information about their whereabouts is urged to contact Werribee Police Station on 9742 9444.