Federal officials say 10 of the dozens of whales stranded in Florida's Everglades National Park are now dead.
Blair Mase, a spokeswoman for the National Oceanic and Atmospheric Administration, says four of the pilot whales were euthanized Wednesday. Six others had already died.
Rescuers have been trying to coax the whales into deeper waters with little success. Nearly four dozen whales had been stranded in about 3 feet of water.
Pilot whales travel in close-knit pods and it is not uncommon for more than one to get stranded.