Jakarta: Indonesian authorities issued a flight warning as Mount Kerinci volcano on Sumatra Island erupted on Wednesday, a statement from the Energy and Mineral Resources Ministry said. The volcano erupted at 12.48 p.m. Jakarta time (0548 GMT), spewing a column of ash up to 0.8 km into the air. The volcanic ash was likely to spread to the northeast and east of the crater, reports said. A no-go zone of 3 km from the crater was put in place. Mount Kerinci is among the more than 100 active volcanoes in Indonesia, a vast archipelagic country home to over 17,500 islands. (IANS)