Murder in the Delivery Room? Serial Killer Nurse Caught
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Authorities in Cheshire announced on Thursday that "a healthcare professional" was taken into custody again as part of an "ongoing investigation" against them.
Police said the suspect was rearrested on Monday for allegedly trying to kill another three babies.
Authorities are investigating the deaths of 17 babies between 2015 and 2016, and another 16 non-fatal collapses in the hospital's neonatal unit from March 2015 to July 2016, the BBC reported.
"This is an extremely difficult time for all the families and it is important to remember that at the heart of this there are a number of families seeking answers as to what happened to their children," Paul Hughes, detective inspector of the Cheshire Constabulary, said in a statement.
Letby worked at the Countess of Chester Hospital for seven years. She came under suspicion after newborn injuries and deaths soared in the neonatal unit.