Hertfordshire Police has launched an appeal to find a 14-year-old girl.
Emily Irvine has not been seen in public since Wednesday afternoon when she was spotted at Ware train station.
She is white, 5ft 5in and slim. She was wearing a grey tracksuit top, grey jogging bottoms and white trainers when she was last seen.
Anyone who has seen her since Wednesday afternoon is asked to contact Hertfordshire Police.