Whale pod beached off Florida coast
4 December 2013 Last updated at 23:49 GMT
Six whales have died and at least 40 others are stranded after a pod beached off Florida's Everglades National Park.
US government officials have said the pilot whales were swimming in only 3ft (0.9m) of salt water at a remote beach on Tuesday.
Initial rescue efforts have been stymied because the water around the animals is too shallow for boats.