Chinese officials blamed poor management and inadequate precautions for an explosion . Explosion killed 104 and hospitalized 60 others . Comment: Chinese officials blamed poor management and inadequate precautions for an explosion at a mine that killed 104 people , state-run media said Monday . Four miners still trapped underground , state media reported .
Chinese officials blamed poor management and inadequate precautions for an explosion . Explosion killed 104 and hospitalized 60 others . Comment: Four miners still trapped underground , state media reported .