Bucharest, Sept. 27 -- Six infants died and three others were infected after a bacterial outbreak at a children's hospital called "Sfanta Maria" in Romania's northeastern Iasi city, the country's Health Ministry said Friday.

The ministry confirmed that nine patients under the age of one had contracted the Serratia marcescens bacteria, but stressed that a direct medical link between the infections and the deaths has not yet been established. Forensic experts will determine whether the bacterium caused the fatalities.

The first case was detected on Sept. 13 but reported to the public health directorate six days later, when four children were already infected. The hospital also failed to impose isolation measures in its intensive care unit (...