A Mini Learners nursery spokesperson told the  Borehamwood Times : "We are absolutely devastated by this news and our sincere and heartfelt condolences go out to the family."

Hertfordshire Constabulary said: "Police were called shortly before 1pm on Thursday 12 November following an incident in Watling Street, Radlett.

"It was reported that a two-year-old girl had gone into cardiac arrest while at nursery. The girl was taken to hospital where she sadly passed away on Saturday 14 November."