The BBC reported on it many many hours ago at the same time [1] with the Department for Energy Security and Net Zero confirming there was an incident.
And i bet that a lot of "Eastern European" "news outlets", which have nothing to do with it, reported it. Funny how propaganda works.
And the same BBC article says that the Telegraph reported it as "the power plant was shut down for four days", whereas on the other hand, the UK Government DESNZ said it only "affected a small-scale generator" not even an entire power plant.
It's always difficult in these situations to read through the FUD and see what the truth is.