At least 53 of 105 people who died — mostly in flash floods and landslides — were from Maguindanao province in a Muslim autonomous region, which was swamped by unusually heavy rains set off by Tropical Storm Nalgae. The storm blew out into the South China Sea on Sunday, leaving a trail of destruction in a large swath of the archipelago. A large contingent of rescuers with bulldozers, backhoes and sniffer dogs resumed retrieval work in southern Kusiong village in hard-hit Maguindanao, where as many as 80 to 100 people, including entire families, are feared to have been buried by a boulder-laden mudslide or swept away by flash floods that started overnight Thursday, said Naguib Sinarimbo, the interior minister for the Bangsamoro autonomous region run by former separatist guerrillas under a peace pact.