Turkish news reports say sensors pointed to high levels of toxic gas inside a coal mine days before Turkey's worst mining disaster, but company officials took no action.
On Monday, prosecutors formally arrested two more people over the fire in the mine in the western town of Soma that killed 301, raising the number of suspects facing charges of negligent death to five.
Several newspapers say data seized by prosecutors indicate that sensors showed high gas levels inside the mine as early as two days before the disaster.
On Monday, prosecutors formally arrested two more people over the fire in the mine in the western town of Soma that killed 301, raising the number of suspects facing charges of negligent death to five.
Several newspapers say data seized by prosecutors indicate that sensors showed high gas levels inside the mine as early as two days before the disaster.
