* 9 workers rescued
* Rescue teams fighting the fire
Sept 25 (Reuters) - An early morning fire on Tuesday trapped 20 workers underground in a Potash Corp of Saskatchewan mine, according to media reports.
The fire at the Rocanville, Saskatchewan, mine was reported while 29 workers were underground, the Regina Leader-Post reported, but nine were rescued by late morning.
The remaining 20 workers were at an underground rescue station.
The newspaper said mine rescue teams are fighting the fire and a cable reel inside the mine is burning.