ESSEX Police is appealing for help in tracing a teenage girl who is missing for the second time this month and officers are concerned for her welfare.

Sharna Middleton, 15, was last seen leaving Harlow with a 15-year-old boy on the afternoon of Thursday, February 18. She is thought to have got on a train to Peckham Rye which arrived just after 6pm.

She is considered vulnerable and officers need information to help find her. She has links to the Rainham area of east London.

Anyone with information is asked to contact police at Harlow on 101.