According to local reports, initially 12 miners were trapped in the Santa Ines mine, in the municipality of Socha.
Authorities pointed to an underground methane explosion.
Rescuers were seen moving the bodies from the mine.
Mining engineer Andres Monsalvo said two miners who survived managed to cling to a compressed air hose.
"There were were two colleagues clinging to a hose, the compressed air hose, which carries clean air, and they had the intelligence, or God enlightened them so that they would break it and survive and endure so that we could get those two colleagues out," he added.