APARRI, Philippines — A day after Typhoon Mangkhut tore through the Philippines, officials began to discover that the human toll from the storm was worse than they had thought.

By late Monday, the unofficial count from the Philippine police was 66 dead nationwide, but that number was almost certain to rise.

In Benguet Province in the northern Philippines, a landslide crushed a church and a bunkhouse for miners. By Monday evening, more than 40 bodies had been recovered from the site and searchers had compiled a list of 61 people still missing but presumed dead.

Elsewhere in mountainous parts of the island, landslides buried homes, killing inhabitants who had chosen not to take shelter in one of the many evacuation centers opened for the storm.