The family of seventeen-year-old Sean Connell from Londonderry are becoming increasingly concerned for his welfare.
The teenager has been missing from his city centre home for the past three days.
A spokesperson for the PSNI said: “Sean was last seen at his home in the Jefferson Court area of L/Derry on Monday, May 4.
“Sean is described as being approximately 5’8” tall, of slim build with dark brown short hair and blue eyes.
“Police would ask Sean or anyone who knows of his whereabouts to contact Strand Road station on 101.”