A group of elephants plunged to their deaths over a waterfall in central Thailand this weekend trying to save a calf that had slipped and fallen crossing a swollen creek.
Thai officials said Tuesday that they had found the bodies of five more elephants at the waterfall in Khao Yai National Park, bringing the total death toll up to 11, the New York Times reports.
Experts say elephants, which are highly social creatures, will react to save one of the herd that’s in distress, and eight elephants died in a similar disaster at the park in 1992.
“We have to look at climate change” when it comes to keeping elephants safe, park director Kanchit Srinoppawan told the New York Times. “In past years, there was not so much water when they crossed. But this year, the rainy season came later.”