article_snippet: David Ocampo said: 'One of the helicopters sounded as if it was firing off shots or experiencing small explosions that were completely out of place. '
article_snippet: The terrifying moment the two helicopters  smashed into each other before spiralling to the ground was caught on camera .
article_snippet: Above, one of the helicopters is left in pieces on the dirt floor after the crash .
article_snippet: I couldn't see anything really, just smoke and the tail of one of the two helicopters between the bushes.'
highlights_snippet: Two helicopters collided during filming for new show on March 9 .
  