- Jul 5, 2009
At least 14 people are dead and dozens injured after Mt Semeru erupted on Indonesia's Java island.
Witnesses described nearby villages covered in debris, and thick smoke blotting out the sun, leaving them in pitch darkness.
Airlines have been warned of an ash cloud rising up to 15,000m (50,000 ft).
The Volcanic Ash Advisory Center (VAAC) in Darwin, Australia said the ash appeared to have detached from the summit and was drifting south-west over the Indian Ocean.
The VAAC provides advice to the aviation industry about the location and movement of potentially hazardous volcanic ash.
Campbell Biggs, a meteorologist at the VAAC, told the BBC that the 15,000m plume was higher than the cruising altitude for most aircraft and would cause most flights in the vicinity to divert their flight paths to avoid it.
Mt Semeru rises 3,676m above sea level and previously erupted last December, forcing thousands of residents to seek shelter.
It is among Indonesia's nearly 130 active volcanoes.
Some eruption footage is included in the article.