A panel of experts has disputed the medical evidence used to convict British nurse Lucy Letby of murdering seven newborns and trying to kill seven others, a doctor who led the examination said Tuesday.

Lawyers for British nurse Lucy Letby on Tuesday launched a new bid to overthrow her conviction for killing seven babies, after a group of international medical experts who reexamined evidence used at her trial concluded none had actually been murdered.

After assessing the cases of 17 babies at the heart of the British nurse’s murder trials, a panel of specialists said that they had found no evidence that Ms. Letby had murdered anyone.

The nurse is serving 15 whole life sentences after being found guilty of murdering seven babies and trying to kill seven others.

The convicted British neonatal nurse was sentenced to 15 life terms with no possibility of release A group of top medical experts from around the world say convicted British neonatal nurse Lucy Letby did not murder seven newborns and try to kill seven others,