A chlorine gas leak at Røabadet in Oslo led to the evacuation of around 40 people on Wednesday afternoon.

The incident occurred in the technical room of the facility, where an issue with the chlorine mixture caused the release of gas.

Although the swimming pool was closed at the time, a nearby gym was evacuated as a precaution.

Four individuals were taken to the hospital after experiencing discomfort, but no serious injuries were reported.

Emergency services worked to ventilate the area and reduce chlorine levels to safe concentrations.

Witnesses described a strong chlorine smell and praised the calm and efficient response of the authorities.