The search to find the mother who abandoned three children in London has narrowed to around 400 homes as police say they can't rule out a fourth baby being found as time goes on.
Officers have been knocking on several properties in an area in East Ham and Plaistow, in East London, as they try to find the mother of the children.
It is believed the person who abandoned them, who may or may not have been their mother, could have travelled from one of those homes.
Officers have been asking neighbours in the area for voluntary DNA samples and for anyone with information to come forward.
Harry, Roman and Elsa, were found abandoned in 2017, 2019, and 2024, respectively, within a few miles of each other, which the senior investigating officer in the case described as 'wholly unprecedented'.






