Police have renewed an appeal to trace a missing teenager following a confirmed sighting of her.

Officers are concerned for the welfare of Grace Fisher, from Herne Bay, who went missing at about 6pm on Wednesday.

The force is continuing its search for the 15-year-old, who may be in London.

It is the fifth time she has been reported missing in the space of eight days.

A police spokesman said today: “Officers have now had a confirmed sighting of her at around 1.15pm the following day at St Pancras railway station and it is believed she could still be in London.

“Officers remain concerned for her wellbeing and continue to carry out extensive enquiries to locate her.

“They are urging anyone who has seen her or who knows where she might be to get in touch with information as soon as possible.”

Grace – also known as Gracie - is 5ft 3in, of slim build and has long straight brown and ginger hair which may be tied back.

She was last seen wearing a brown faux fur jacket, a lilac t-shirt worn under a white hooded top, plain black leggings and black Nike trainers.

She also has a brown and black chequered handbag with her. She may also have a navy blue hooded top with pink writing.

The first appeal to help find her was launched last Wednesday, when she disappeared from the River area of Dover the previous day.

She was found safe later that day, but vanished again last Friday.

Police said at the time she had last been seen in Hermitage Lane, Aylesford, walking towards Barming at about 6pm.

After she was subsequently found, another appeal went out a day later – with the teen this time being last seen in the Stanley Road area of Herne Bay at about 2.30pm.

The fourth plea to help find Grace came on Monday after she went missing at about 4.15pm – again from the Herne Bay area.

She returned the following day, only to go missing again yesterday.

Anyone with information should call 999, quoting reference 07-1167.