Rescue workers on Tuesday sifted through smoldering debris and thick mud in search of survivors, a day after a volcano on Indonesia’s island of Flores erupted, killing at least nine people with its searing lava and ash.

Mount Lewotobi Laki Laki spewed thick brownish ash as high as 2,000 meters and searing lava, gravel and ash were thrown up to 7 kilometers from its crater, blanketing nearby villages and towns with tons of volcanic debris and forcing residents to flee.

The National Disaster Management Agency on Tuesday lowered the death toll from an earlier report of 10, saying a victim trapped under tonnes of debris in a collapsed house who was feared dead was rescued in critical condition. The agency said 63 other people were hospitalized, 31 of them with serious injuries.

More than 2,400 villagers streamed into makeshift emergency shelters after Monday’s eruption that burned down seven schools and 23 houses, including a convent of nuns, on the majority-Catholic island, said the agency’s spokesperson, Abdul Muhari.

Smoldering debris, thick mud and a power blackout hampered the evacuation and search efforts, said Kensius Didimus, a local disaster agency official.

“We’ll do everything we can to evacuate villagers by preparing trucks and motorbikes for them to flee at any time,” he said, adding that the debris and lava mixed with rainfall formed thick mud that destroyed the main roads on the island.

Authorities warned the thousands of people who fled the volcano not to return during Tuesday’s lull in activity. But some were desperate to check on livestock and possessions left behind. In several areas, everything — from the thinnest tree branch to couches and chairs inside homes — was caked with ash.

AN-AP