Henry McColgan was last seen yesterday.
Police in Derry are appealing for help to find a missing teenager.
A PSNI spokesperson said: "We are growing increasingly concerned for Henry McColgan who is 14 years old. Henry was last seen in the Duddy’s Court area of Londonderry at around 0100hrs on Saturday 17th July. We do not have any details in relation to what Henry is wearing.
"If you know Henry’s whereabouts or have any information which could assist us in finding him, please call 101 and quote CW198-170721. Please note that private messages are not monitored 24/7 so we would ask that you please call us if you have any information."
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