BEWARE: Statistics show sparklers cause the most injuries FOX 10 Phoenix Danielle Miller's Reports Published July 2, 2018 5:46 PM MST Share Copy Link Email Facebook Twitter LinkedIn Reddit Published July 2, 2018 5:46 PM MST PHOENIX (KSAZ) - A holiday warning, just in time for the 4th of July: watch out for sparklers. They look innocent enough, but every year, nearly 13,000 people end up in the emergency room with injuries. FOX 10's Danielle Miller reports.