Hayley, 15, was last seen at around 12.25am on Monday, 18 October in Netley Abbey, Southampton.
At the time PC David Holland said: ‘You may remember that we issued an appeal to find Hayley at the weekend and she had been located. Unfortunately Hayley has gone missing again and we are extremely concerned for her welfare.
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‘Please keep a look out for her and if you think you’ve seen her since she went missing during the early hours of this morning, or think you may know where she is, please contact us as soon as possible.’