(Whitewater Valley)--The weekend’s Fourth of July celebrations were not without incident.  In Darke County, a 12-year-old boy was flown to Cincinnati Children’s with a severe hand injury after a firework went off in his hand.  Two men were injured at the Darke County Fairgrounds when they were firing a test shot.  One of the two was injured badly enough to be taken to Miami Valley Hospital.  The fireworks display was cancelled.  And, in Richmond, fire officials investigated to see if fireworks were responsible for a fire that broke out on home’s roof on South 15^th late Friday night.