A British nuclear power plant is on alert as a rapidly expanding wildfire threatens the facility, with concern changing weather over the course of the day could overwhelm air filters with smoke. They said: “The fire at Dunwich Heath is not currently affecting operations at Sizewell B power station but we are continuing to monitor the situation — we are not on high alert.” Sizewell B is the second of three power plants built over the historic fishing village of Sizewell in Suffolk, England. Construction began on the first, Sizewell A, was one of the UK’s first nuclear plants, and it generated power until 2006. Sitting next door to that historic facility, Sizewell B is Britain’s youngest operating nuclear power station and came online in the 1990s.