Disaster mitigation authorities in West Nusa Tenggara have raised the status of Indonesia’s second highest active volcano to “alert” as it continues to spew ash, prompting an Australian airline to cancel all flights to and from Denpasar airport today.

Mount Barujari, Mount Rinjani’s cone and a result of eruptions of the main volcano in 1994 and 1995, erupted on Sunday sending hot clouds and debris up to around 10,000 feet, Azhar, chief of the West Nusa Tenggara Disaster Mitigation Agency, said on Tuesday.

Although the status remains at alert, Azhar said, the agency had prepared a number of evacuation scenarios for some 40,000 residents living near the 3,726-meter volcano located in the North Lombok district.

“We will evacuate them immediately to the safest areas in North Lombok, East Lombok and West Lombok,” said Azhar as quoted by news portal Okezone.com on Tuesday.

The volcanic activity has prompted Virgin Australia to cancel all of Tuesday’s flights to and from Indonesia’s most popular tourist destination island of Bali — neighboring Lombok.

“Our team of meteorologists and the Volcanic Ash Advisory Centre have advised that conditions in the vicinity of Denpasar Airport are not safe for flying,” Virgin said in a statement.

Virgin added that it would make a decision on tomorrow’s flights after receiving further advice from the same experts.

Nine flights were scheduled for today and one is scheduled for tomorrow, according to the carrier’s website.

“We continue to monitor the situation closely,” Virgin says. “The safety of our guests and crew is our highest priority and we will keep customers updated as new information becomes available.”

No Indonesian airlines nor airports have suspended operations due to the volcanic ash.

Virgin was among other Australian airlines that cancelled their flights in July and August when Mount Raung in East Java erupted.