It's 2020, can't say you didn't expect this. 

Low levels of radiation spotted in northern Europe may have come from a malfunctioning nuclear power plant in western Russia.

“The radionuclides are artificial, that is to say they are man-made,” the National Institute for Public Health and the Environment in the Netherlands said on Friday.

“The composition of the nuclides may indicate damage to a fuel element in a nuclear power plant [but] a specific source location cannot be identified due to the limited number of measurements.”

https://www.independent.co.uk/news/world/europe/radiation-scandinavia-nuclear-power-plant-russia-a9589301.html?fbclid=IwAR2ThrWN_7NV7yFbttX06Y5BfAC7ESljelWH82UPxhXrqrWctTNuaPEAWco