Lucas Rosario was last seen in New Street, Aylesbury at around 8.30pm on Sunday 17th April.
He has links to London and is believed to have travelled to Harrow On The Hill via train.
He was last seen wearing blue Nike joggers, black hoody and black trainers.
If you know where he is or have seen him you can call TVP on 101 quoting reference 43220166924.
FULL IMAGE OF LUCAS:
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