Watch dramatic footage of Bali's Mount Agung volcano erupting

Mount Agung in Bali erupted on Sunday (Nov 26), spewing ash up to 4,000m into the atmosphere.

This resulted in all Singapore to Bali flights being cancelled today (Nov 27) as Bali's Ngurah Rai International Airport was closed due to the eruption.

At least 14 flights from Singapore to Bali were cancelled, reports The Straits Times.

At 8am today, Changi Airport put up an advisory for passengers to check its website or its app iChangi, for the latest flight updates.

Indonesian authorities have also raised the threat warning from the volcano to the highest level due to fears that potentially greater eruptions could be imminent.

The volcano's last major eruption occurred in 1963, killing over 1,000 people.

However, it has been rumbling since September of this year forcing tens of thousands of people to flee to shelters.

Watch the video of the eruption that had occurred on Sunday (Nov 26) below.