The ash cloud above Mount Lewotobi Laki-laki on Monday was about four times taller than the one produced by an eruption there last month.

Indonesia’s rumbling Mount Lewotobi Laki Laki has erupted with a column of volcanic materials as high as 11 miles into the sky and ash falling on villages.

Dozens of flights to and from Indonesia's Bali island were cancelled Monday after a volcano belched a colossal ash tower 18 kilometres (11 miles) into the sky, authorities said.