A release from the Myanmar’s Information Ministry confirmed the information.
"An over 304-meter high cliff collapsed, burying local jade scavengers," a rescue worker at the scene was quoted in the ministry's earlier release as saying.
The landslides, caused by the monsoon rains, occurred at a jade mining site in Sate Mu village tract of Hpakant township at 8am local time, according to a release from the Fire Services Department.
Hundreds of jade scavengers are feared to have been buried as the landslides occurred during their working hours, but exact numbers of casualties are yet to be known and rescue operations are being carried out, a township police officer told Xinhua.
Deadly landslides are frequent in Kachin state, known as land of jade, especially in Hpakant mining region.
Many local people make a living by jade scavenging in the region and most of the landslides are caused by partial collapse of tailings heaps and dams.
A major landslide, which occurred in the region in November 2015, left at least 116 jade scavengers dead.