Indonesia's Geological Agency said the volcanic island located in Indonesia's Sunda Strait between the main Java and Sumatra islands had showed signs of activity since Friday before erupting for 30 seconds at 3:53 a.m. Sunday. The agency's closed-circuit camera showed lava flares at the mountain.
There were no casualties reported and no evacuation order issued. The nearest settlement is more than 16 kilometers (10 miles). But the agency warned residents and visitors to stay at least 3 kilometers (1.9 miles) from the volcano's active crater.
Volcanic ash spread across parts of the capital Jakarta and Lampung province on the southern tip of Sumatra island, Indonesia's Center for Volcanology and Geological Hazard Mitigation said.
"Due to increased activity from the Mount Anak Krakatau eruption, Soekarno-Hatta International Airport has temporarily suspended flight operations from 5:30 a.m. to 9.30 a.m.," the airport said in a travel advisory early Sunday.
Passengers at the country's busiest airport sought refunds and reclaimed checked baggage as departure boards displayed a growing list of canceled flights.
