(Adds details on incident from spokesman throughout, comments...

(Adds details on incident from spokesman throughout, comments from energy provider, changes dateline)

MELBOURNE, March 7 (Reuters) - Rio Tinto RIO.L (RIO) said on Thursday it had been notified of an incident at its Queensland gas pipeline, which Australian media had earlier said was a fire that had impacted supplies.

Rio Tinto also said it was checking with energy provider Jemena to understand how its alumina and aluminium operations would be affected by the disruption.

"We are working with Jemena and the Australian Energy Market operator to understand the impact to our Gladstone operations," a company spokesperson said in a statement.

Australian media had reported that a fire had broken out on Tuesday at a section of the pipeline and that industrial gas users had been asked to lower consumption so that residential users were not impacted.

"Preliminary work is underway to prepare the impacted section of the Queensland Gas Pipeline for repairs," energy provider Jemena said in a statement. "We will be in a position to provide more detail on our restoration plan and timeframe once this initial stage is completed."

Rio's Gladstone operations include its Yarwun and Queensland alumina refineries and its Boyne aluminium smelter.