Only one of 12 miners trapped underground in West Virginia was found alive, hours after it had been reported the 12 had survived. A 13th miner had been found dead earlier.
Earlier, relatives had celebrated news of the "miracle" that 12 miners had been found alive.
The 13 coal miners were trapped 70 metres underground after the mine explosion early on Monday. They are thought to have been poisoned by toxic fumes.
Rescuers knew they were battling against the clock before the men ran out of air, food and water.
Families had faced an agonising wait for news and had gathered together at the Sago Baptist Church.
West Virginia Governor Joe Manchin was with the families and had said it would take nothing less than a miracle to save the men.
Anna McCloy, wife of the only survivor, was among those waiting for news of the group's fate.
The families had been rejoicing for nearly three hours when they were told the men had not survived.
Mining officials tried to explain what happened at a news conference, but there were tough questions over how the miscommunication occurred.
St Joseph's Hospital had prepared for the arrival of any survivors.
Ambulances rushed from the scene, but it transpired only one miner was still alive, Randal McCloy Junior.