Russia gains by blowing up the dam, says SVT's foreign reporter and former Russia correspondent Bert Sundström. In the long term, this means that the water supply in Russian-occupied Crimea will be greatly hampered.

Why the dam was destroyed now may be related to the Ukrainian counteroffensive that has been talked about recently. "Slowly enough, Ukraine is launching its counteroffensive. We are likely to see brutal major battles in the coming weeks," says Sundsträm. Watch the drone footage showing masses of water gushing over the destroyed dam in Ukraine.