Thousands of residents have been evacuated after a volcano in central Indonesia erupted, sending red-hot lava cascading down its slopes.
Towering clouds of hot ash and debris spiralled into the sky and and airlines travelling within six miles of the peak were told to fly around the zone.
One woman died of a heart attack in the chaos as Mount Lokon - rumbling and on high alert for nearly a week - unleashed three powerful blasts in the early hours shaking those living along the mountainside from their sleep.
"This is the largest eruption I've ever experienced," said Nelson Uada, who was among 6,000 people crammed into schools, mosques and emergency shelters.
"It was very scary," he said. "Glowing lava flowed like flames in the darkness and it sounded like we were in a war."
The 5,741-foot mountain in north Sulawesi province remained active on Friday. Despite the warning to airlines no flights were cancelled and operations at the nearby international airport in Manado were not affected.
More than 33,000 people live along the fertile slopes of Mount Lokon, but many of those with homes within the danger zone had been relocated before the triple eruptions. Soldiers and police helped rescuers evacuate 5,000 others, said Jimmy Eman, the acting mayor in the nearby town of Tomohon, with more planned.
A senior official at health ministry said the government had sent 60,000 respiratory masks to the region.
Indonesia, a vast archipelago of 240 million people, is prone to earthquakes and volcanoes because it sits along the Pacific "Ring of Fire," a horseshoe-shaped string of faults which lines the Pacific Ocean.
Mount Lokon is one of the country's 129 active volcanoes. Its last major eruption in 1991 killed a Swiss hiker and forced thousands of people to flee their homes.