22/23 June 2020, RN IMS station SEP63, Sweden detected 3 isotopes

22/23 June 2020, RN IMS station SEP63, Sweden detected 3 isotopes; Cs-134, Cs-137 & Ru-103 associated with Nuclear fission at higher than usual levels (but not harmful for human health). The possible source region in the 72h preceding detection is shown in orange on the map.
Source: Comprehensive Nuclear-Test-Ban Treaty Organization