A drought in Germany looks set to make the Rhine River unusable for supply boats.
German water and shipping authorities have predicted that by Friday, water levels at a key section of the waterway will drop below 40-centimeters.
That would be too low for barges carrying coal and oil upriver.
This will impact Germany's ability to fuel its power plants at a time when gas supplies are being squeezed by Russia.
Barges have already needed to cut cargo loads by up to 50-percent to pass through shallow sections.
Germany faced a similar situation in 2018 when Rhine water levels hit a record low of 25-centimeters.