A chemical leak at an aquapark in Reda, Poland, prompted the evacuation of over 400 people. Local services reported the incident stemmed from a handling error leading to the release of a chemical substance. One individual required hospitalization due to poisoning from the leak. Authorities are investigating the cause and extent of the contamination. The aquapark has been temporarily closed as safety protocols are reviewed and the area is decontaminated. Officials have not yet detailed the specific chemical involved, but are assuring the public that the situation is under control. Further updates will be provided as the investigation progresses.