Indonesia’s Mount Ruang volcano spewed more hot clouds on Wednesday after an eruption the previous day forced the closure of schools and airports, pelted villages with volcanic debris and prompted hundreds of people to flee.

Seven airports, including Sam Ratulangi international airport in Manado, the capital of North Sulawesi province, remained closed after Tuesday’s eruption, the second in two weeks. Schools were shut to protect children from volcanic ash. The volcano is on tiny Ruang Island, part of the Sitaro islands chain.