Police are desperately searching for a missing 13-year-old girl who vanished in her school uniform on Friday (May 25).

Serena McAllister is being frantically searched for by Met Police and her parents. Officers from Kingston and Merton have given the rare advice of calling 999 immediately after any sightings.

The 13-year-old, from New Malden, was last seen in her school blazer just before school hours and it is reported that she did not make it to school on Friday morning.

Her mother has posted online asking the public to “please help” in the search for Serena.

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The schoolgirl is from the New Malden area of south London.

Officers from Kingston and Merton are urgently appealing for help to find the missing schoolgirl who has now not been seen for 24 hours.

Her mother Katie posted online yesterday: “My 13-year old daughter Serena has been missing since 8.30am today. She was in a green blazer Holy Cross school uniform - last seen in New Malden area. Dark brown hair tied up. Please help!”

Serena did not make it to school on Friday (May 25)

The public are asked to call 999 immediately with any sightings or information.