Former Ulster Unionist Party leader Tom Elliott is the chairperson of Ballinamallard FC in County Fermanagh.
He told BBC News NI that while the club was being set up for its 3pm opening time on Saturday, someone smelled smoke.
“It all happened very quickly,” he said.
He added that he believed that the fire was accidental.
“The fire service were very good. They got it under control and they put it out in a few hours,” he said.