TOKYO (AP) – A volcano erupted in central Japan on Saturday, catching mountain climbers by surprise and trapping more than 250 people. At least 11 people were injured, including seven who were unconscious. With a sound likened to thunder, Mount Ontake erupted shortly before noon, spewing large white plumes of ash high into the sky and sending people on the mountainside fleeing, covering some in ash. More than 250 people were trapped on the mountain and a nearby peak in areas that were dangerous to approach, though some had decided to try making their way down as sunset approached, said Nagano prefecture crisis management official Minoru Kashiwabara. Eleven people were injured, eight seriously, including the seven who lost consciousness, Kashiwabara said.