Startling photos and videos showed a life-threatening landslide topple a building in an industrial park in Shenzhen, a major city in China’s southern Guangdong province, on Sunday.

At least 85 people remained missing and 16 people hospitalized as of Monday evening in China, The Associated Press reports.

The landslide came after heavy rains destabilized a 330-foot-high mountain of soil and construction waste accumulated over two years. The debris spilled over an area of 380,000 square meters (4 million square feet) and destroyed some 33 buildings, including three workers’ dormitories and 14 factories.

Immediately after the incident, Chinese President Xi Jinping called on Shenzhen city and Guangdong province authorities to conduct search-and-rescue missions, treat the wounded and mollify families as quickly as possible, Chinese state-run news agency Xinhua said. Some 2,900 people are on the scene, digging through the rubble, according to China’s People’s Daily.

A number of photos and videos, taken both on the ground and from drones, show rescue workers carry out search-and-rescue missions amid a deluge of orange dirt and building debris strewn across the city.