YANGON, Myanmar — A landslide near a jade mine in northern Myanmar on Saturday evening killed about 100 people, most of them villagers digging for green stones in a mountain of displaced earth, a witness and a community leader said Sunday. Many other people were missing.

The landslide occurred in the Kachin State area of Hpakant, said Brang Seng, a jade businessman, who watched as bodies were pulled from the debris and taken to a hospital morgue.

“People were crying,” he said. “I’m hearing that more than 100 people died. In some cases, entire families were lost.”

Lamai Gum Ja, a community leader, said that homes at the base of the mine dump had been flattened.

He estimated that 100 to 200 people were still missing. Search and rescue teams wearing bright orange uniforms dug through the rubble for survivors on Sunday.

Kachin, which is about 600 miles north of Yangon, Myanmar’s biggest city, has some of the highest-quality jade in the world.