Lucy Letby, the nurse jailed for murdering seven babies and attempting to murder six others, has filed a formal appeal against her convictions.

She was handed 14 whole-life orders after being convicted last month, meaning she will never be allowed out of prison.

Letby who was in her mid-20s and working at the Countess of Chester Hospital at the time of the murders – is now the UK’s most prolific child killer of modern times.

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