Police have launched an urgent appeal to find missing teenager Serena, aged 16, who was last seen in Milton Keynes, Buckinghamshire, on Sunday evening.
Anyone who sees Serena is urged to call 999 immediately.
Those with any information, no matter how small, are asked to contact Thames Valley Police on 101, quoting reference number 43250204844.
The Missing Persons Team and police are working together to locate Serena as quickly as possible. Public support is crucial in helping ensure her safe return.