Duluth crews on Tuesday rescued over two-dozen anglers stranded on a large chunk of ice that broke free from the shore and started floating out into Lake Superior. Assistant Fire Chief Dennis Edwards says adding to the danger is that ice floes can break up, throwing people into the water where they can be crushed between pieces of ice:

“Even small chunks of ice that are thick are several thousand pounds apiece, and that’s a very dangerous combination with big waves. By the time the crack was open… maybe by a hundred yards, we had whitecaps on the water.”

Edwards says the rescue boat was taking on water and icing-up, and they needed to get everyone to shore before firefighters were also put in peril.