A volcanic eruption at Anak Krakatau has stranded around 270,000 passengers across Indonesia after more than 2,000 flights were grounded and airports suspended operations for a second consecutive day. The volcano, located 150km from Jakarta, began erupting late on Friday and remained seismically active over the weekend, prompting Jakarta's Soekarno-Hatta International Airport and three other airports to extend closures amid concerns over ash affecting flight safety.

Volcanic ash has been detected as high as 15,000m on the Sumatra side of the eruption, with Indonesia's Geological Agency warning further eruptions remain likely. Authorities have imposed a 3km exclusion zone around the crater for both people and ships, while schools in the region have moved to online classes and some shipping has been disrupted. Passengers have described chaotic scenes at airports, with some resorting to overnight train journeys or facing waits of up to five days for rebooked flights, though officials say there is no associated tsunami risk.