Super Typhoon Mangkhut, which struck the Philippines early Saturday as “the planet’s strongest storm in 2018” before heading for China, has killed at least 69 people, and the death toll expected to rise in the worst hit portions of the Philippines as rescue workers search for dozens feared dead.

A landslide in Itogon, a town in the Phillipines’ Benguet province, covered a former miners’ bunkhouse converted into a chapel, where an estimated 40 to 50 people sought shelter despite warnings from police that it was unsafe, according to The Associated Press.

Mayor Victorio Palangdan said 11 bodies have been recovered, and there is a “99 percent” chance those who remain missing—mostly poor miners and their families—were killed.

“Hundreds of rescuers armed with shovels and picks, including police and soldiers, searched for the missing in the muddy avalanche along a mountainside as grief-stricken relatives waited nearby, many of them quietly praying. Bodies in black bags were laid side by side,” the AP reported. “Those identified were carried away by relatives, some using crude bamboo slings.”