The grand finale of the Fourth of July fireworks show in Cortez was interrupted for 15 minutes Tuesday night after the fireworks trailer caught fire. Cortez Assistant Fire Chief Shawn Bittle tells KSJD a charge detonated too close to the ground and ignited part of the trailer. The show’s organizer, Keenan Ertel, immediately cut power to the fireworks’ electronic ignition system to allow firefighters on scene to extinguish the blaze, which did not injure anyone or spread beyond the trailer. The show resumed after crews finished safety checks.