(ROUGH CUT - NO REPORTER NARRATION)<br/> <br />STORY: At least 20 people were injured early on Tuesday when a rogue firework accidentally set off thousands of others in the bell tower of a church in the Spanish eastern town of Elche, said Spanish agency Europa Press.<br/> <br />The explosion caused a rain of sparks and burning material that fell on people gathered for the town's annual summer festivities.<br/> <br />Spanish media reported that the church fireworks were covered by a protective blanket and in a pack designed to shoot mini-rockets into the air before exploding.<br/> <br />According to a statement by Elche's city hall made available on Twitter, one firework fired from elsewhere landed on the pack and made it explode.<br/> <br />The "Night of Down", also known as the "Night of the Fire" festivities have their origin in the Middle Ages in which Catholic families offered a fire rocket to Virgin Marie for each children in the house. The festival is held annually in Elche on August 13.
