JAKARTA (Reuters) -Mount Lewotobi Laki-laki in Indonesia's East Nusa Tenggara province erupted on Tuesday, spewing a towering ash cloud 11 kilometres (6.8 miles) high, the country's volcanology agency said.

Indonesia’s Geology Agency said in a statement it recorded the volcano unleashing 10,000 meters (about 32,800 feet) of thick grey clouds on Tuesday afternoon, following significant volcanic activities, including 50 in two hours, rather than the usual daily 8 to 10 activities.

Indonesian Authorities raised the eruption alert to the highest level and expanded the danger zone to 8 kilometers (about 5 miles) from the crater. The ashes expanded into a mushroom-shaped ash cloud that could be seen from the cities located 90 kilometers (about 56 miles) to 150 kilometers (nearly 93 miles) from the mountain.