>> Indonesia's Merapi volcano erupts again

Molten lava flows from the crater of Mount Merapi captured in this extended time exposure photograph taken from Klaten district in Central Java province late on November 2.

Searing gas billowed from the crater of the 2,914-metre (9,616-foot) mountain in central Java as the president repeated scientists' warnings that further eruptions are likely over the coming weeks.

A major eruption last week killed 36 people and experts say the volcano remains extremely dangerous.

The transport ministry re-issued a warning on November 3 to airlines to avoid certain routes over central Java due to the volcanic ash.

Six flights from Malaysia and Singapore were cancelled on November 2, the first day of the aviation warning.

In the Mentawai island chain 1,300 kilometres (800 miles) to the west of Mount Merapi, more than 400 people were killed when a tsunami triggered by a 7.7-magnitude earthquake slammed into coastal villages on October 25.

About 15,000 people were made homeless in that disaster, which scientists said was directly related to the 2004 Asian tsunami, also created by an earthquake off the Sumatran coast.

Officials said bad weather was hampering operations to bring aid supplies to the isolated islands.