OTTAWA, Oct 14 (Reuters) - Safety investigators probing a fire that destroyed a small town in western Canada in late June have found no link to trains that were operating in the area, an official report said on Thursday.

Two people died when a wildfire ripped through Lytton, British Columbia. Amid suspicions the blaze might have been started by sparks from freight train wheels, authorities ordered Canadian National Railway Co and Canadian Pacific Railway Ltd to temporarily reduce speeds.

Canada's Transportation Safety Board (TSB) said it had carried out "significant investigative work to determine if there was a definitive connection" between trains running through the town and the blaze.

"The TSB investigation has not identified any link between railway operations and the fire," it said.

A CP train had passed through the town about 18 minutes before the first report of a fire, the TSB said. A probe of the train showed no signs of "hot bearings, burnt brake heads, built-up tread, and other potential fire-creating causes."

CP said in July it had found nothing to indicate any of its trains had caused or contributed to the fire, which erupted during a record breaking heat wave. (Reporting by David Ljunggren Editing by Chris Reese and Diane Craft)