Police were called in by Bassetlaw hospital, near Worksop, Nottinghamshire, following the suspension of a member of staff after an internal inquiry into 'unexplained incidents' involving ventilators and other equipment.
A spokesman for the hospital said that, 'to the best of our knowledge', no patients had been harmed as a result, the problems with equipment having been picked up 'as a part of normal routine checks'. The 400-bed hospital has a four- bedded intensive care unit.
The Bassetlaw Trust is within the Trent Regional Health Authority which covers Grantham and Kesteven general hospital where Beverley Allitt, who is serving 13 life sentences for killing four children, worked as a nurse.
The trust said it had suspended disciplinary action against an individual after referring the case to the police last week. Nottinghamshire Police would confirm only that an inquiry was being launched.