LANSING, N.Y. — Seventeen miners trapped in one of the world’s deepest salt mines were rescued Thursday morning, ending a 10-hour ordeal that began when their elevator broke down 900 feet underground.

The workers were descending to the floor of the 2,300-foot-deep Cayuga Salt Mine — nearly deep enough to fit two Empire State Buildings stacked on top of each other — to start their shift when the elevator broke down at around 10 p.m. Wednesday, said Mark Klein, a spokesman for mine owner Cargill Inc.

The miners were never in any danger, Klein said.

Emergency workers communicated via radio with the miners, who had blankets, heat packs and other supplies lowered to them.

A crane hoisted the first four to the surface in a basket around 7 a.m. Thursday at the mine in Lansing, about 40 miles outside Syracuse. Another four were rescued about 30 minutes later, and seven more were brought to the surface by 8:30 a.m., Klein said. The last two were rescued a few minutes afterward, he said.

The mine, which Klein said is the deepest salt mine in the Western Hemisphere, produces road salt that is shipped throughout the Northeastern United States. The mine is located on the shore of Cayuga Lake and extends beneath its waters.