It has emerged a baby girl found abandoned in a shopping bag in sub-zero temperatures has two siblings who were also found in similar circumstances in East London.
DNA testing has confirmed Baby Elsa has the same parents as Baby Harry who was found in 2017 and Baby Roman who was discovered in 2019.
Dr Ciaran Murphy, Trustee for the Association of Child Protection Professionals, told Sky News the case is "unusual" which suggests it is not a "simplistic" case but likely there was a "state of crisis" meaning the parents could not care for their babies.
He said there are "different reasons" why parents can't raise their own children but it is a "deeply upsetting" case.