A volatile volcano in central Indonesia has erupted again, spewing ash almost 2,000ft (600m) into the air.

Monitoring official Farid Ruskanda said Mount Lokon on Sulawesi island erupted twice within half an hour today.

Mount Lokon has been dormant for years but rumbled back to life late last week.

Yesterday, it unleashed its most powerful eruption yet, spitting hot ash as high as 11,400ft (3,474m).

Some 5,000 people near the mountain have been relocated to safer areas.