In this drone photo released by the Geological Agency (Badan Geologi) of Indonesia’s Ministry of Energy and Mineral Resources, Mount Anak Krakatau spews volcanic smoke in Sunda Strait, Indonesia, Saturday, Sept. 5, 2026. (Badan Geologi via AP)

JAKARTA, Indonesia — A volcano erupted in Indonesia on Sunday, prompting the cancellation of all flights at Jakarta’s Soekarno-Hatta International Airport and disrupting other domestic airports as about 170,000 passengers were stranded by ash drifting across western parts of the country.

The volcanic island of Anak Krakatau, located in Indonesia’s Sunda Strait between the main Java and Sumatra islands, had shown signs of activity since Friday before erupting for 30 seconds at 3:53 a.m. Sunday and for 16 seconds about three hours later, Indonesia’s Geological Agency said.

Closed-circuit camera footage showed lava flares from the volcano. No casualties were reported and no evacuation order was issued. The nearest settlement is more than 16 kilometers (10 miles) away, but authorities warned residents and visitors to stay at least 3 kilometers (2 miles) from the active crater.

Volcanic ash spread across parts of Jakarta and Lampung province on Sumatra’s southern tip, Indonesia’s Center for Volcanology and Geological Hazard Mitigation said. AirNav Indonesia closed airspace around Soekarno-Hatta and Halim Perdanakusuma airports in Jakarta, as well as six other airports, including Radin Inten II Airport in Lampung, because of volcanic ash.