Lucy Letby may have harmed dozens more babies, police fear

Exclusive: Officers investigating suspicious' incidents at Countess of Chester and Liverpool women's hospitals

Police believe Lucy Letby, the nurse convicted of murdering seven babies, may have harmed dozens more infants at two hospitals in the north-west of England, the Guardian has been told.

A source with knowledge of the police investigation said detectives had identified about 30 babies who suffered suspicious" incidents at the Countess of Chester hospital where she worked.