tonight, and Caroline Kennedy making headlines this evening after a tweet she sent out. She, of course, is the ambassador to Japan now and clearly not in favor of what's now happening to hundreds of... See More
tonight, and Caroline Kennedy making headlines this evening after a tweet she sent out. She, of course, is the ambassador to Japan now and clearly not in favor of what's now happening to hundreds of dolphins rounded up in Japan. Here's ABC's aditi Roy now. Reporter: These dolphins are at the heart of an international controversy. Pitting western conservationists U.s. Ambassador to Japan Caroline Kennedy now weighing in, tweeting she is, quote, deeply concerned by inhumaneness of drive hunt dolphin killing. More than 250 bottle-nosed dolphins including this rare albino dolphin were lured into a cove off the Japanese coast. According to the sea shepherd conservation society, which is tracking the dolphin roundup, two have already died and 40 have been taken into captivity. They've been held for 72 hours. That's a lot of trauma, a lot of stress. They're not being fed. And today most likely they will kill them. Reporter: The 2009 documentary "The cove" brought international attention to the hunt. That's a dolphin's worst nightmare, right there. Reporter: Local government officials outraged by the documentary said the, quote, dolphin fishermen are just conducting a legal fishing activity in their traditional way. Activists say they are just selling the dolphins to the highest bidders at aquariums worldwide. But local villagers claim it is a critical part of their economy and a sacred cultural tradition. David? Aditi Roy, thank you.
This transcript has been automatically generated and may not be 100% accurate.