Mount Semeru in Indonesia erupted violently, sending towering ash clouds down its slopes and blanketing villages. Authorities raised the alert to the highest level, prompting evacuations and a red aviation warning for Australian travelers due to potential flight disruptions.

Several hundred people have been evacuated after a large volcano eruption in Indonesia that also prompted an aviation warning in Australia.

The volcano spewed ash clouds as high as 2 km (1 mile) above the mountain's peak, the agency said, adding residents should keep to a 2.5 km distance away due to risks.

Jetstar and Qantas passengers are being warned to brace for potential travel delays after a volcanic eruption in Indonesia. Mount Semeru, the highest peak on Java, roared to life