More than 10 boxes of butterflies were flown to Chengdu for the event . Excited onlookers tried to capture the insects the minute they were let out . The butterfly festival is a huge hit in China, with more than 100 million people expected this year.
More than 10 boxes of butterflies were flown to Chengdu for the event . Excited onlookers tried to capture the insects the minute they were let out . Many butterflies failed to fly away and were trampled in the melee .