Romania's state-owned nuclear power producer, Nuclearelectrica, warned that its last operational reactor, which typically supplies about one-fifth of the country's electricity, could shut down as early as Thursday due to persistently low water levels in the Danube River. In France, power company EDF stated on Wednesday that it had reduced output at several reactors due to environmental concerns, following the earlier shutdown of three reactors at the Gravelines nuclear power plant in the north due to a "massive influx of jellyfish." Meanwhile, Hungary was able to restart another turbine at its Paks nuclear power plant as rainfall led to a recovery in Danube River water levels.