Underwater debris swirls the river's already powerful currents into whirlpools of fast-moving water that can endanger divers, authorities said.

CNN: Divers work in a dark, dangerous world

"People were driving down the middle of the (four-lane) road to avoid being swept away by the fast-moving water, " he said.

CNN: High winds, tornado trap Georgia residents, turn over cars

Sequential optical images of high spatial resolution were used for the first time to derive surface ice velocities of Glaciar Upsala, a fast-moving fresh-water calving glacier in southern Patagonia.

UNESCO: Dublin Core