The eruption lasted for more than two minutes at 11:36 a.m. local time on Monday and sent a plume of thick ash to the southwest and west, Sai Ibu Volcano Observation Post official Ridwan Jalil said on Monday, Xinhua news agency reported. hunched over.

Following a significant increase in the mountain's recent activity, the Center raised its hazard status from level three to level four, the highest, on May 16.

Locals are asked to avoid the danger zone within a 4 km radius and 7 km north of the crater.