(Image Credit: National Park Service/AP Photo)

Rescue efforts are underway to save nearly four dozen whales that are stranded in dangerously shallow waters in Florida's Everglades National Park.

Ten whales have already died in the remote area of the park, according to the National Oceanic and Atmospheric Association.

It was unclear how the pod of whales became stranded, but in a tweet, NOAA cautioned the outlook was grim.

The NOAA Fish Southeast account tweeted that "most mass whale strandings don't have happy endings" and that "success rates for survival are low."

The agency said the last mass whale stranding in this area was in 1995.