A £20,000 reward is being offered for information that leads to the identification of the parents of three siblings found abandoned in London over eight years.
The Metropolitan Police said that despite more than 450 hours of CCTV being reviewed, the parents of the three children, known as Elsa, Roman and Harry, remain unidentified.
However, it is believed their mother has lived in an area of east London “over the past six years”.
Elsa was believed to be less than an hour old when she was found by a dog walker on 18 January last year, in East Ham, east London.
In the months that followed it was found that she had two siblings who were also abandoned in similar circumstances, in the same area of London, in 2017 and 2019.