The rescue effort has ended at West Virginia’s Upper Big Branch Mine after the discovery of the bodies of the four miners who remained missing after last week’s explosion. Their deaths brought the death toll to twenty-nine in the worst US mining disaster in nearly forty years. West Virginia Governor Joe Manchin held a news conference Saturday shortly after the bodies were found.

Gov. Joe Manchin: “We did not receive the miracle we prayed for. We have accounted for four miners that had been unaccounted for. We have a total of twenty-nine brave miners who we are recovering at this time. None of the chambers had been deployed, and none of our miners suffered. So this journey has ended, and now the healing will start.”

In a statement, President Obama called for a probe into the mine blast, saying the tragedy requires “accountability.” The owner and operator of the mine, Massey Energy, has been cited for dozens of safety violations in recent years, with fifty-seven citations just last month.