Yesterday around 4pm, there was an explosion on the inferno barge in the World Showcase Lagoon. The problem was with the Air Launch Firework (ALF) system on the inferno barge. The ALF shell exploded whilst still inside the launch tube. Thankfully nobody was injured, but it is a reminder on the dangers the pyro crews around WDW face on a daily basis.
Both ALF systems (on the UK pavilion and on the inferno barge), have been pulled from the show whilst investigations are ongoing.