Officers are appealing for witnesses after two teenagers were threatened and attacked on a train near Streatham.

At around 9.40pm last Tuesday, two 16-year olds were on a Thameslink train between Streatham and Tulse Hill.

They were approached by two older men, who demanded their phones and items of clothing.

When the teenagers refused, they were physically attacked and punched by the two men who also threatened to kill them.

If you witnessed this incident or have any information, contact BTP by texting 61016 or by calling 0800 40 50 40, quoting reference 697 of 9 September.

You can also contact Crimestoppers anonymously on 0800 555 111.