Met Police say Olivia is described as:
- Light skinned black female, 5ft 5 inches tall
- She has long, blond and brown plaited hair
- She was last seen wearing a dark green hooded coat, a white school polo shirt, black trousers and black shoes
- She has a mental age of five-years-old
Anyone who has seen her or who knows of her whereabouts should call police in Enfield Borough on 07825832887 or 101.
More top news
Khan, the Labour MP for Tooting, claims his plan to hold fares at 2016 prices until 2020 is fully costed.
Lee Drake smashed into a moped in Poplar in June 2014, after going through a red traffic light with blue lights on but no sirens.
More than a decade after their daughter's death the Dowler family were given these harrowing details of their daughter's last hours.