Residents wore masks to protect themselves from thick volcanic ash that blanketed roads and green rice fields in villages in south-central Indonesia as rumbling Mount Lewotobi Laki Laki erupted Tuesday for a second straight day.

The eruption at dawn sent lava and clouds of ash up to 4 kilometers (2.4 miles) high. That followed an eruption around midday Monday that sent a column of volcanic materials up to 18 kilometers (11 miles) into the sky and an evening burst that spewed lava and send volcanic ash as high as 13 kilometers (8 miles) into the air.