Rescuers freed three workers from a mine in British Columbia, Canada, on Thursday night, the mine’s operator said. They were trapped for more than two days.

The miners, who worked for a drilling company, were stuck underground after a section of the Red Chris Mine collapsed near where they were working Tuesday morning, according to Newmont Corp, the mine’s operator.

There was a second collapse, but the miners were able to move before that into a refuge chamber with enough food, water and ventilation for an extended period, Newmont said.

The incident set off a round-the-clock rescue operation, involving specialized crews and equipment. Contact with the miners was limited after the second collapse, Newmont had said earlier.

Rescuers were able to reach them after a remote-controlled scoop cleared the debris from an access tunnel on Thursday, the company said, and brought them back to the surface.

The miners were “safe, and in good health and spirits,” it added.

The open-pit mine, in northwest British Columbia, was constructed in 2014 and is approved to extract gold and copper until 2038, according to the province’s mining database.