It was reported that French authorities also contacted the Home Office citing “serious fears about the mental and physical health of these minors”.
A Home Office spokeswoman said: “The UK takes its responsibilities towards unaccompanied children extremely seriously. Whilst it would be inappropriate to comment on ongoing legal proceedings, we take the safeguarding of children extremely seriously.
“We have been working closely with the French authorities and delivery partners, including UNHCR, to ensure that all the children who are eligible for transfer to the UK can be brought here as soon as possible.
“The UK has a proud history of granting asylum to those who need our protection, and we have provided protection to nearly 34,640 children since the start of 2010.”
The emails were disclosed in a case at the upper tribunal immigration and asylum chamber. The Home Office is being challenged over delays faced by three young refugees forced to wait months to be reunited with their families. A judgment will be handed down at a later date.
More than 220 children have been transferred to the UK under the Dubs amendment.