This picture taken on May 20, 2018 shows the Mount Sinabung volcano spewing ash into the air and lightning from its crater in Karo. Sinabung roared back to life in 2010 for the first time in 400 years, after another period of inactivity it erupted once more in 2013 and has remained highly active since. / AFP PHOTO / ANTO SEMBIRING
Mount Merapi volcano on Indonesia’s Java island spewed ash more than 1 kilometre into the air on Monday, an official said.
The eruption lasted for six minutes but there was no order for local residents to evacuate as no lava was ejected, said Sutopo Nugroho, the spokesman for the National Disaster Management Agency
The alert level for the volcano remained normal, he said.
Hundreds of people fled their villages to safer locations after an initial eruption on May 11.
A series of eruptions at Merapi killed more than 300 people in 2010.
Indonesia sits on the Pacific Ring of Fire, an area around the edges of the Pacific Ocean, susceptible to earthquakes and volcanic eruptions.
The country is home to 130 active volcanoes.