Operations were expected to resume Tuesday afternoon following a fire at a potash mine in eastern Saskatchewan.

The fire at Mosaic’s K2 potash mine near Esterhazy started Monday morning, sending 318 miners to underground refuge stations where they waited for hours as emergency crews put out the blaze and the heavy smoke cleared.

A spokesperson for Mosaic says the rescue efforts wrapped up around midnight and no injuries have been reported.

The company’s K1 mine resumed production Tuesday and K2 was expected to be back in operation later in the day.

A piece of mobile mining equipment is believed to be the source of the blaze.

The last underground fire that forced an evacuation at the Esterhazy mine occurred in 2006.

With files from CTVNews.ca Staff