Airlines warned as Indonesian volcano unleashes towering ash column

A warning notice was issued to airlines after a rumbling volcano in Indonesia shot billowing columns of ash more than 16,000 feet into the atmosphere.

Rumbling Mount Sinabung on the Indonesian island of Sumatra shot billowing columns of ash more than 16,400ft (5,000m) into the atmosphere and sent hot clouds down its slopes on Monday.

There were no fatalities or injuries from the morning eruption, the National Disaster Mitigation Agency said.