An estimated 5,000 guests were evacuated from the Gaylord Opryland Resort & Convention Center Tuesday night after an explosion in the Delta area of the hotel rocked the property, according to the Tennessean. Officials believe the blast, which occurred around 8:15 p.m., originated in a mechanical room on the first floor and was caused by a gas leak. No life-threatening injuries were reported, and guests were allowed back into the resort around 3 a.m. Wednesday. Repairs could cost Gaylord Entertainment up to $750,000. Those with meetings planned for the near future have no need to be concerned. "There should be minimal to no disruption of future meetings," Gaylord spokesman Brian Abrahamson told the Tennessean.