A gran has appealed to the public to help trace a masked moped rider who shot her grandson in the head along with his mum.

The two-year-old boy managed to survive the shooting in Harlesden, north London.

The toddler, his mum and two teens were injured when a gunman opened fire in a residential street, in what police described as an “appalling attack.”

Doctors told the boy’s family the bullet missed the little boy’s crucial artery by just 1mm.