Traces of a deadly infection which killed four babies in hospitals in Northern Ireland have been found in three more neonatal units.
Health officials said the pseudomonas bacteria has been detected in water outlets at Daisy Hill Hospital in Newry, Co Down, Craigavon Area Hospital in Co Armagh and the Erne Hospital in Co Fermanagh.
The Public Health Agency said no babies in these three hospitals had been infected.
Separate outbreaks claimed the lives of one newborn at Altnagelvin Hospital in Derry in December and three at the Royal Jubilee Maternity Hospital in Belfast last month.
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Traces of the infection were also detected in the neonatal unit at the Ulster Hospital on the outskirts of Belfast last month, though no infants contracted it.