Lava glows on the slope of Mount Lewotobi Laki-Laki during an eruption on Friday evening (Badan Geologi)
Mount Lewotobi Laki Laki in Indonesia erupted for a second consecutive day on Saturday, sending ash and volcanic material up to 18 kilometres (11 miles) into the sky.
The eruptions, including one on Friday evening, blanketed nearby villages with debris, though no casualties have been reported.
Indonesia's Geology Agency observed an avalanche of searing gas clouds, rocks, and lava travelling down the mountain's slopes, with volcanic material thrown up to eight kilometres (five miles) from the crater.
The volcano, located on Flores island, has been at the highest alert level since 18 June, leading to the doubling of its exclusion zone to a seven-kilometre (4.3-mile) radius.
This event follows a major eruption less than a month ago that affected Bali's airport, and is considered one of Indonesia's largest since the 2010 Mount Merapi eruption.