A landslide at a jade mine in northern Myanmar killed at least 126 people, officials said on Thursday.

A wave of mud and rock triggered by heavy rain engulfed those collecting stones, the fire service said.

“Other bodies are in the mud,” Tar Lin Maung, a local official with the information ministry, told Reuters by phone, “The numbers are going to rise.”

The country’s fire service department said in a Facebook post: “The jade miners were smothered by a wave of mud, which hit after heavy rainfall.”