A volcano in eastern Indonesia erupted Friday, spewing towering clouds of hot ash into the air and sending a group of hikers to scramble to safety, leaving nine injured and one missing, an official said. According to AP, Mount Gamalama on Ternate island in North Maluku province shot thick gray smoke up to 2,000 meters (6,560 feet) into the sky just before midnight Thursday, said Sutopo Purwo Nugroho, the spokesman for Indonesia's Disaster Mitigation Agency. He said nine panicked hikers fell while fleeing to safety and suffered severe injuries. Four of them were hospitalized and rescuers were searching for the tenth. Slow-moving red lava was visible at the peak of the eruption Friday and villages were blanketed with thick ash, but no evacuation orders have been issued, Nugroho said. An airport in Ternate, the provincial capital about30 kilometers (20 miles) from the volcano, was forced to close Friday as did schools and offices.