Concern for wellbeing of NSW baby boy

Police hold concerns for the welfare of a baby boy who was last seen in Blacktown with his mother last week.

There are concerns for the welfare of a baby boy in Sydney's west as police appeal for the public's help to find him.

Baby William is aged between eight and 10 months old and police say he was last seen with his mother in the Blacktown area last Friday.

Police would like to speak to the baby's 32-year-old mother, Jennifer Gee, also known as Jennifer Murphy or Jennifer Lyons.

They have concerns for the child's safety and wellbeing.