Just a few minutes into the 4th of July Fireworks on Lake Eola, the crowd went into a panic and started to run for cover. Police said it may have been caused by firecrackers or some other type of firework thrown into the crowd. After the events that took places earlier in the day in Chicago, when people saw members of the crowd running, they thought the worst and ran for safety as well. There were earlier rumors of gunfire, but police say that wasn't the case. They are still investigating to see what caused the scare. This video shows what is believed to be the moments the chaos started.