(Image: Derbyshire Constabulary)
A 16-year-old boy has gone missing from Derby and may have travelled to York.
Derbyshire Constabulary said it is growing concerned for the welfare of Ligert, from the Sunny Hill area of the city.
The force said it believed he boarded a train shortly after 2pm on Friday, July 24 and may have left the train in York or Doncaster.
He was last seen in Derby city centre at 1.10pm on the same day.
The Derbyshire force has described Ligert as 5ft 10ins tall, of slim build, with short dark hair.
He was last seen wearing a black Lacoste T-shirt, black and blue shorts, black trainers, black socks, and carrying a black backpack.
Anyone with information about his whereabouts is urged to contact Derbyshire Police and quote incident number 1364 of July 24.
People can get in touch through the force’s online crime reporting tools, by sending a private message to the Derbyshire Constabulary Facebook page, or by calling 101.