Indonesia has been hit by two natural disasters over the past few days - one of which was the devastating eruptions of this volcano - Mount Merapi.
It started spewing volcanic ash and rocks for miles around on Tuesday night, covering everything in its path in a layer of white-ish ash.
Thousands of people were told to leave their homes as the ash rained down, but many refused to leave at first as they didn't want to abandon their homes and cattle.
So far, at least 25 people have died, but officials fear that number will rise.
About 10,000 people are now living in temporary shelters away from the danger.
A volcano exclusion zone has been set up, but some farmers are thought to be ignoring it to check on their livestock, making it hard for officials to keep track of everyone.