At least 24 flights to and from the Indonesian resort island of Bali were cancelled on Monday after an eruption of the Mount Lewotobi Laki-laki volcano belched volcanic ash 11 miles into the sky, officials said.

The 1,584m volcano, situated on Flores island, is part of a twin-peaked formation with the taller and less active Mount Lewotobi Perempuan. The eruption occurred at 11.05am local time, according to Indonesia’s volcanology agency, which noted that clouds of searing gas cascaded down the slopes during the blast.