The hunt is on for three missing teenage girls, including two who disappeared last week.
13-year-old Carly-Jo Lill of Boxted Road, Hemel Hempstead, and Kerry Galvin, 14, from St Albans went missing last week but were found on Thursday after they returned home.
They have now gone missing again, along with 15-year-old Shelby Bush, of Wood Farm Road, Hemel Hempstead.
The trio were last seen at Watford Junction train station at 4.30pm on Saturday.
It is believed they travelled into London, and police are appealing for witnesses to help trace the girls,
Carly-Jo is described as white, of a thin build, with shoulder length dark brown straight hair.
She was wearing denim leggings, a black and silver Nike jacket, and shiny Nike hi-top trainers with a silver tick, and bright blue and green laces.
She is also in possession of a pair of black Ugg boots.
Kerry is described as white, 5ft 4ins tall, of a slim build and with a fair complexion.
She has very long black hair which she normally wears in a ponytail.
She was wearing a light blue hooded top, blue jeans and white and pink trainers. She was carrying a pink tote bag.
Shelby is described as white, 5ft 5ins tall, of thin build with dark brown shoulder length hair.
She was wearing a pink ‘Soul Cal’ hooded jumper, jeans or jeggings, black Ugg boots and a pink handbag.
Anyone who may have seen the girls, particularly in the north of London, or who has any other information, is being asked to call the police non-emergency 101.