(MANILA, Philippines) — Flash floods and landslides set off by torrential rains left at least 50 people dead, including in a hard-hit southern Philippine province, where as many as 60 villagers are feared missing and buried in a huge mudslide laden with rocks, trees and debris, officials said Saturday.

At least 42 people were swept away by rampaging floodwaters and drowned or were hit by debris-filled mudslides in three towns in Maguindanao province from Thursday night to early Friday, said Naguib Sinarimbo, the interior minister for a five-province Muslim autonomous region governed by former separatist guerrillas.

Eight other people died elsewhere in the country from the onslaught of Tropical Storm Nalgae, which slammed into the eastern province of Camarines Sur early Saturday, the government’s disaster response agency said.

But the worst storm impact so far was a mudslide that buried dozens of houses with as many as 60 people in the tribal village of Kusiong in Maguindanao’s Datu Odin Sinsuat town, Sinarimbo told The Associated Press by telephone, citing accounts from Kusiong villagers who survived the flash flood and mudslide.

Army Lt. Col. Dennis Almorato, who went to the mudslide-hit community Saturday, said the muddy deluge buried about 60 rural houses in about 5 hectares (12 acres) section of the community. He gave no estimate of how many villagers may have been buried in the mudslide, which he described as “overwhelming.”

At least 13 bodies, mostly of children, were dug up Friday and Saturday by rescuers in Kusiong, Sinarimbo said. 

“That community will be our ground zero today,” he said, adding that heavy equipment and more rescue workers had been deployed to intensify the search and rescue work.

“It was hit by torrents of rainwater with mud, rocks and trees that washed out houses,” Sinarimbo said.

The coastal village, which lies at the foot of a mountain, is accessible by road, allowing more rescuers to be deployed Saturday to deal with one of the worst weather-related disasters to hit the country’s south in decades, he said.

Citing reports from mayors, governors and disaster-response officials, Sinarimbo said 27 died mostly by drowning and landslides in Datu Odin Sinsuat town, 10 in Datu Blah Sinsuat town and five in Upi town, all in Maguindanao.

An official death count of 67 in Maguindanao on Friday night was recalled by authorities after discovering some double-counting of casualties.

The unusually heavy rains flooded several towns in Maguindanao and outlying provinces in a mountainous region with marshy plains, which become like a catch basin in a downpour. Floodwaters rapidly rose in many low-lying villages, forcing some residents to climb onto their roofs, where they were rescued by army troops, police and volunteers, Sinarimbo said.