A volcano spewed ash and lava on Fernandina, one of the ecologically delicate Galapagos Islands, threatening vegetation and some animals, officials said.
Washington Tapia, director of Galapagos National Park, said vegetation on uninhabited Fernandina would be burned and some iguanas would die. But he called it "a natural process" that was not cause for worry.
Fernandina is the westernmost island in the Galapagos. The volcano has erupted at least 20 times since 1813.