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An arrest warrant has been issued for actress Hayden Panettiere in Japan as a result of her Save the Whales protest in the country according to E! News.

"I learned today that I have an arrest warrant out for me in Japan because of what I did for Save the Whales," Heroes star Panettiere told E!.

Panettiere was part of a group who tried to prevent the slaughter of a group of whales and dolphins by fisherman near Taiji in southwestern Japan.

The group of activists was involved in a confrontation with the fishermen after they paddled on surfboards to try and reach a pod of dolphins before it was driven into a nearby cove and massacred.

Video footage of the clash shows the fisherman using the boat's propellers to halt the surfers' progress and even lashing out at them with a boat hook, eventually forcing them to return to shore.

Panettiere said she did not know what repercussions the arrest warrant would bring, but said it would not put her off doing something similar again.

"I'd do it again," she said of the protest. "Very possibly, might do it again."

"I was very excited that people were interested in what we did," she said. "In [Hollywood], you tend to only get publicity for not wearing underwear or going to rehab."