Volcanic ash is spreading across Indonesia after the Anak Krakatau eruption. Health fears are growing among locals. Eight airports have closed. Aviation in the area is affected. Javan rhinos are probably fine, officials say. The eruption has brought back questions about the 1883 Krakatau disaster. Could it happen again?

In New Zealand, people in Auckland are being told to get ready for a tsunami. Preparations are underway. But it clashes with a Rotorua event. Every mayor in the country will be there. Elsewhere, a report called the toxic dust after 9/11 a slow-motion tsunami.