JAKARTA, Indonesia – More than 25,000 people fled their homes following a series of eruptions and lava flows from Mount Sinabung in Sumatra, an official said Sunday (January 12th) according to AFP.

Tri Budiarto, National Disaster Mitigation Agency emergency response director, told AFP that everyone within a 5km-radius of the volcano was evacuated after it first erupted Saturday. Mount Sinabung erupted another four times Tuesday, MetroTV News reported.

Hot lava, which has been spewing from the volcano for the past two weeks, flowed into a river and filled up valleys with pyroclastic material, he said.

"There were small secondary explosions when lava flows came into contact with the water, but there are no casualties so far. We are urging people not to carry out any activity in the rivers," he added.