A western Kentucky mine complex has resumed most operations nearly a week after two miners were killed in a roof collapse.
State officials say the individual mine where the collapse occurred remains shut down, but Dotiki's other mines have resumed operations. The April 28 collapse killed 27-year-old Justin Travis and 28-year-old Michael Carter.
Alliance said in the statement that its investigation showed the "roof fall was an unpredictable accident involving unforeseeable geological conditions."
State mining officials say they haven't yet determined a cause.
Source: AP News