Police are trying to locate a teenage girl that could be in Heathrow.

15-year-old girl Alexis has been missing Friday the 15th of August.

She travelled from Northampton to Leicester Square, Marble Arch, and Heathrow and is last known to be in Tottenham Court Road.

She is described as 5feet tall, of slim build, with long dark hair.

Anyone with information on her whereabouts should contact police on 101.