He highlighted that climate change is causing more intense rainfall across Europe and the world, as a warmer atmosphere retains more moisture, leading to heavier precipitation.
In Poland, the mayor of Glucholazy in the Opole region reported that the river has overflowed, flooding the town, and urged residents to evacuate to higher ground. In Krakow, sandbags are being used to protect against the floods.
In the Czech Republic, a dam burst in the South Bohemia region on Saturday, and Environment Minister Petr Hladik warned that residents in the worst-hit areas should prepare for evacuation.