HEGANG, Heilongjiang: The death toll from the deadly coal mine blast in northeast China's Heilongjiang province rose to 106 with two more bodies retrieved Wednesday morning, said local authorities.

The blast happened at around 2:30 am Saturday at the Xinxing Coal Mine under the state-owned Heilongjiang Longmei Mining Holding Group's subsidiary in Hegang City.

A total of 528 miners were working underground when the blast happened.

Safety officials and investigators have blamed poor management and inadequate safety precautions for the coal mine blast.