A worker at the Isala hospital in Zwolle has been suspended for frying potatoes in part of the building used for operations, local broadcaster RTV Oost says on Thursday.

The worker tried to avoid detection by hanging a sign reading ‘do not enter, ebola’ on the door, RTV Oost says.

The hospital described the incident as ‘unacceptable’ and said it did not conform with hospital standards. Three other workers were also involved in preparing the French fries but were not suspended.

A spokesman for the hospital said patient safety had not been endangered.