Indonesian rescuers raced to evacuate thousands of people Thursday after a volcano erupted five times, forcing authorities to close a nearby airport and issue a warning about falling debris that could cause a tsunami.
Mount Ruang's crater flamed with lava against a backdrop of lightning bolts overnight after erupting four times on Wednesday, pushing an ash column more than a mile into the sky and forcing authorities to raise its alert level to the highest of a four-tiered system.