A 15-year-old boy who has been missing for more than a month could be in Derbyshire.
Hoang Nguyen, from North Hykeham in Lincolnshire, was reported missing on Sunday, July 26.
Lincolnshire Police had initially believed he had travelled to Leicestershire or the London area.
However, the force has now expanded its appeal for help finding Hoang to include the entire East Midlands, with people in Derbyshire and Nottinghamshire now urged to help find him.
Officers say they are “extremely concerned” about his welfare given how long he has not been seen for and his young age.
In a statement, Lincolnshire Police said: “After 39 days, missing 15-year-old Hoang Nguyen has still not been found.
“We are renewing our appeal with an additional picture of the teenager from North Hykeham, in the hope that this will gain further attention for the appeal.
“We are asking anyone in our county and the surrounding counties of Leicestershire, Derbyshire, Nottinghamshire and the Metropolitan Police area to share our appeal.
“Please come to us with any sightings or information that might help us find Hoang. We are extremely concerned for Hoang especially given his young age and the length of time he has now been missing for.”
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Anyone who might have information about where he is is asked to contact Lincolnshire Police on 101, quoting the refenence Incident 454 of July 26.
Any potential sightings can also be reported to the independent charity, Missing People, by calling or texting 116 000.
People can also contact Crimestoppers, which is an anonymous service, on 0800 555 111.