Indonesia has ordered thousands of people to evacuate their villages, as the country's most active volcano erupted again, shooting deadly gas and ash into the sky. Vulcanologists said today's high intensity eruption was the strongest yet from the 2,914-metre Mount Merapi, but there were no reports of new casualties after 36 people were killed last week. A government scientist said the eruption was bigger than yesterday's as heat clouds and volcanic material were shot 10 kilometres into the sky and then streamed nine kilometres down the slopes of the volcano. Officials said the number of people at safety shelters rose to 90,000 from 75,000 when the official exclusion zone was widened from 10 to 15 kilometres around the volcano.