Bosses at the hospital where killer nurse Lucy Letby worked "facilitated a mass murderer" by ignoring concerns raised, an inquiry has heard. A mother told the Thirlwall Inquiry into the events surrounding the crimes of Letby her baby girl's death in October 2015 could have been prevented if "prompt and effective action" was taken following the deaths of three infants in June of that year. Serial killer Letby injected air into Child I's stomach and bloodstream as she finally took her life on her fourth attempt at the Countess of Chester Hospital.

In a statement read on her behalf, Child I's mother told the inquiry: "I believe the doctors and nursing staff should have acted earlier and those in positions of authority at the hospital should have listened to them instead of trying to create their own narrative that Lucy Letby was a victim of bullying and harassment. "Someone should have investigated the concerns fully at the time. This is what management are paid so handsomely to do.

They shouldn't have been concentrating on saving their own skins and jobs and reputations. "Babies died because someone in an office being paid hundreds of thousands of pounds didn't want the hospital to look bad if they shut the neonatal unit down while they investigated why so many babies were deteriorating when they should have been thriving." She went on: "I believe that much more should have been done after the first three babies had died within a short space of time in similar circumstances.

"H.