Police have released a new image of a missing 15-year-old girl known to be suffering depression.
Ella Hysom was last seen on Monday in Clements Road in Ilford walking towards Cineworld.
She was recently treated in hospital suffering for the condition.
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The venue says it is in contact with promoters about a final decision, following the terror attack at the singer's concert on Monday.
Soldiers will replace armed police at many sites after security experts warned the Government that another terrorist attack may be imminent.