🌋 'Ploom of doom' Alert: Indonesia's Mount Ruang erupts again, closes international airport

Authorities had warned the threat from the volcano was not over after it erupted more than half a dozen times this month, sparking the evacuation of more than 6,000 people.

Ruang, located in Indonesia's outermost region of North Sulawesi province, erupted at around 01:15 am local time (1715 GMT Monday) and twice more Tuesday morning, the volcanology agency said in a statement.

The volcano sent a tower of ash more than five kilometres (3.1 miles) into the sky, it said.

The agency also re-instated a six-kilometre (3.7-mile) exclusion zone and said locals should be aware of "the potential for ejections of incandescent rocks, hot clouds and tsunamis due to eruption material entering the sea".