A teenage girl who has been missing since yesterday morning is believed to have travelled though Folkestone.

Serena Alexander Benson, 13, was last seen when she left her home in Wimbledon at around 7.50am.

Although she told her father she was going to school, she never arrived and has not been seen since.

Police believe she left the country on a Eurotunnel train from Folkestone and have asked for anyone who may have seen her to come forward.

Serena, who may have been with an older person, lived with her father in Wimbledon while her mother lives in Poland.

There are concerns for her welfare.

She was dressed in her predominantly green school uniform and has not been missing before.

A Met Police statement says: "Police enquiries have established that Serena left the UK at Folkestone on the morning of 25 May on a EuroTunnel train. Active lines of inquiry are being pursued to locate her.

"Anyone who may know Serena's whereabouts or who may have seen her as she travelled through Folkestone - probably in the company of an older person - should call officers at Wandsworth CID on 020 3276 2588."