Blackpool Victoria Hospital: Four more arrests in 'poisoning' probepublished at 12:08 British Summer Time 3 April 2019
Four healthcare professionals have been arrested on suspicion of administering poison or a noxious substance to patients at Blackpool Victoria Hospital.
One man and three women have been held amid allegations of mistreatment and neglect at the hospital.
Police are investigating after concerns were raised about the care provided to some patients on the stroke unit.
Two women and a man previously arrested as part of the inquiry were released under investigation.