Meanwhile, four people are still missing in Baguio City and 64 in Benguet.
Philippine officials say that gold mines tunneled by big mining companies and by unauthorized small miners have made the hillsides unstable and more prone to landslides.
Many of those buried in Itogon were small-scale gold miners and their families who took refuge in a building abandoned by large mining firm. A second landslide blocked any means to escape, leaving the community completely trapped.
"We have to try", he told NBC News. "Right now, we are committed to working hand in hand to help people recover as fast as possible".
In the Philippines, rescuers for the Itogon landslide were hampered by rain and mud.
Police and soldiers were among the hundreds of rescuers with shovels and picks searching for the missing along a mountainside as grief-stricken relatives waited nearby, many of them praying quietly.
The typhoon is already the city's most powerful storm on record and looks set to become its most destructive, after Typhoon Hato left a record $110 million claims bill following its impact a year ago.
Local authorities said Typhoon Mangkhut had killed 66 people in the Philippines and four in China, where it weakened to a tropical storm that was expected to continue to produce rain and strong winds through Tuesday.
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This yacht was washed up on a sea wall in Hong Kong. Mangkhut struck just before the fall harvest, affecting more than 80 per cent of corn crops and causing damage to agriculture estimated at 51 million Swiss francs (2.86 billion Philippines pesos).
According to the National Disaster Risk Reduction and Management Council, 148,400 people were being helped inside and outside evacuation centres. It forecast the storm to hit the regions of Guizhou, Chongqing and Yunnan on Monday.
The skyline of the Kowloon area is silhouetted at sunset before typhoon Mangkhut approached Hong Kong.
Eight crew members had to abandon their sinking sand barge and board another boat in rough seas off Hong Kong Disneyland Park as the city was being pummelled by Typhoon Mangkhut on Sunday.
Across Hong Kong, authorities strived to clear roads of debris, including toppled trees and bamboo scaffolding.
Bus, ferry and rail services were suspended and nearly 900 flights were cancelled at the city's airport, one of the world's busiest.
A group of volunteers pick up debris on the promenade in Tseung Kwan O district in the aftermath of super Typhoon Mangkhut in Hong Kong on September 18, 2018. Cleaning up began in Macau even as 20,000 households were left without power on Monday.