Indonesia suspended operations at eight airports, including Jakarta's main international hub, after an ash cloud from the Anak Krakatau volcano disrupted airspace over the weekend. The Saturday eruption produced lava and booming sounds heard up to 435 miles away, with two further eruptions recorded on Sunday, and the closures forced hundreds of flight cancellations affecting airlines including Singapore Airlines and Qantas, disrupting travel across the region.

Soekarno-Hatta airport near Jakarta remained shut until 9.30pm local time after repeated extensions, with more than 22,000 passengers and 209 flights affected, particularly routes to and from Singapore, Doha, Sydney and Kuala Lumpur; at least 16 domestic flights to Bali were also cancelled. Ash reached up to 15,000 metres over Sumatra and 6,000 metres over Java, causing eye irritation among residents and prompting school closures and cancelled fishing trips, while authorities planned cloud-seeding to wash away the ash and banned ships from coming within two miles of the volcano, which sits near the site of the catastrophic 1883 Krakatau eruption.