Police say they are becoming "increasing concerned" for 16-year-old boy missing from Derry.
William Warby was last seen at his home address in the Waterside area of the city on Monday night.
He is believed to have left during the night.
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A spokesperson for the PSNI said: "Police are becoming increasingly concerned for Missing 16 year old William Warby.
"William was last seen in the Waterside area of the city last night, in his home address, however he has left at some stage throughout the night."
The spokesperson added: "William is believed to be wearing a black jacket with distinctive yellow and white sleeves (pictured).
"If you have seen William, or anyone matching his description since last night, please contact 101 quoting serial 266 of 02/04/23."
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