Oslo’s city health official has reported a growing rat problem throughout the city center, noting an increase in reported sightings. A letter from the chief medical officer to the City Environment Agency indicates the issue appears to be worsening across the municipality. The official describes the topic as “very taboo,” suggesting underreporting may be contributing to the perceived surge. Details regarding the cause of the increase are currently unavailable, but the report signals a potential public health concern. The City Environment Agency has acknowledged the communication and is expected to address the situation. Further investigation and potential pest control measures are anticipated.