Police are growing increasingly concerned for a missing 16-year-old girl.
Olivia Imolek was last seen at her home in Leavesden on Monday June 9.
Olivia has not made contact with anyone since leaving the address and is likely to be somewhere in the Watford area.
Olivia is described as having very long straight brown hair and is about 5ft5. She was last seen wearing a black t-shirt and brown trousers.
Intervention Constable James Stopford said: "Olivia’s family is growing increasingly concerned as she has not been in contact with them. If anyone has seen her, or knows where she is, please contact the police immediately.
"Olivia, if you see this appeal please get in touch with us or your family, so that we can make sure you are safe and well."
Anyone who has seen or has any information about Olivia’s whereabouts should contact the police non-emergency number 101.