Big bang theory
The dramatic moment a fireworks factory exploded in Colombia has been captured on camera. A member of a local TV crew was filming a blaze at the building in Granada when it erupted, sending colourful pyrotechnics across the sky. One person sustained minor injuries and several roads were closed. An investigation has been launched to establish what caused the explosion.
I think that I can help here. The explosion was caused by a blaze. Now all the investigators have to do is find out what caused the blaze.
Glad to have been of service.