The International Atomic Energy Agency (IAEA) is aware of information from the Provisional Technical Secretariat of the Comprehensive Nuclear-Test-Ban Treaty Organization (CTBTO) that its International Monitoring System (IMS) detected elevated levels of three radioisotopes Ru-103, Cs-134 and Cs-137 in the air at an IMS monitoring station in Sweden.

As per standard practice in such cases, the IAEA has contacted its counterparts requesting information on whether these radioisotopes have been detected in their countries, and if any event may have been associated with this atmospheric release.