A teenage girl who has been missing for more than a week has links to High Wycombe and Chesham, police have said.

Danielle McKenna, 14, from Hemel Hempstead, was last seen before Christmas on Monday, December 22.

She was wearing a black three-quarter length puffa jacket, leggings and pink and blue trainers and she is described as white, 5ft tall of a slim build and with shoulder length blonde wavy hair.

Thames Valley Police is helping Hertfordshire Constabulary appeal for witnesses because of her links to both Wycombe and Chesham.

Officers are asking either Danielle or people who know of her whereabouts to call them on 101.