Bali volcano Mount Agung looks on the brink of a bigger and more destructive eruption as it spews out dangerous cold lava and ash. 

The Bali volcano can be seen in the live webcam, on YouTube, as experts prepare for an explosive eruption.

Despite a reduction in the amount of ash coming from Mount Agung, warnings continue. 

Posting on Twitter, volcanologist Dr Janine Krippner said: “This does not mean it is over.

“Fluctuations in activity are a normal part of the life of volcanoes.”

Indonesia’s Volcanology and Geological Disaster Mitigation Centre also warned that a more violent eruption remained likely with the crater of Mount Agung one-third filled with magma.

Scores more rescue flights out of Bali have been cancelled today as the race to get stranded tourists home was again thrown into turmoil thanks to the volcanic ash cloud.

Both Jetstar and Virgin Australia announced the cancellations today as experts brace for a violent eruption from Mount Agung, which first grounded flights a week ago.

Jetstar had already announced that seven of its flights for Saturday had been cancelled, along with two to Perth for tomorrow morning.

It will not fly out of Bali again before 1pm Sunday and will reassess the situation tomorrow, although the chances of flying on Sunday afternoon appear dim.

The airline, like Virgin Australia, will not take passengers up to Bali because of ongoing concerns about an explosive eruption, which is forecast by volcanologists.