Poppy Davies died of a glucose overdose, the inquest heard.

A premature baby died of a "massive overdose" of glucose following a series of blunders at a leading children's hospital, an inquest has heard.

Poppy Davies was born three months early on Christmas Eve last year, before being transferred to Great Ormond Street Hospital in London for specialist care after her birth in Basildon, Essex.

As she was recovering from a routine operation in January, she was attached to a machine supplying her with a glucose solution to give her energy - but the nurse looking after her, who was in training and had spent just three weeks in the hospital's neonatal intensive care unit, failed to set up the equipment properly.

Rebecca Tite also failed to check whether a safety valve was in place.

As as result, instead of being carefully measured, a free flow of glucose entered Poppy's bloodstream and circulated for over an hour.

Her blood glucose levels rose to 20 times the maximum level they should have been, causing "devastating effects" to her body, St Pancras Coroner's Court in central London heard.

Doctors tried to save Poppy's life by giving her insulin but she died on February 1.

Coroner Dr Andrew Reid recorded a narrative verdict outlining the circumstances of five-week-old Poppy's death, but said it was a "tragic accident".

Speaking after the inquest, Poppy's father David Daly, a fireplace fitter from Greys, Essex, said he hoped the hospital had learned from its mistakes.

He said: "It's heartbreaking, but what can you do. You've just got to carry on fighting."