Experts said lava is welling up in the crater, sometimes reflected as a reddish-yellow glow in the ash plumes. The agency raised the volcano's alert to the highest level early Monday and expanded the danger zone to six miles. Lava rising in the crater "will certainly spill over to the slopes," Sutopo said. The Indonesian disaster agency called on 100,000 to evacuate and expanded the danger zone after the eruption of Mount Agung. The move to close the airport came after tests showed the volcano’s ash had reached its airspace, making it dangerous to fly.

Source: Fox News November 27, 2017 05:15 UTC