A review has found that systemic failings in a Nottingham maternity unit led to the deaths and harm of hundreds of mothers and babies. The exact number of those affected is reported to be over 500 by some sources, but this figure is not universally agreed upon. The findings have been widely condemned, with descriptions of the care as "abysmally inadequate" and the trust as "toxic", prompting a response from NHS leadership and plans for an improvement board.