Volcanic ash is spreading across Indonesia after the Anak Krakatau eruption. Health fears are growing among locals. Several airports have been shut down. Air travel in the region is disrupted. 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. All mayors are expected to attend. Elsewhere, a report called the toxic dust after 9/11 a gradual environmental disaster.