Police are growing increasingly concerned for a foreign teenager who has been missing since Wednesday.

German Tino Hensel, a student at the Medway School of English, in Chatham, was on a school trip to London when he disappeared.

The 16-year-old, who is described as vulnerable, was last seen in the Apple store in Regent Street, at about 3.20pm on Wednesday.

He is described as white, slim and about six feet tall. He was wearing dark trousers, a black baseball top and dark baseball cap when he vanished.

The Metropolitan Police said recent personal problems mean officers are keen to find Tino as soon as possible.

Anyone with any information about his whereabouts is urged to phone 0300 123 1212, quoting reference 10MIS031628.