Some Fourth of July advice from the New Hampshire state fire marshal: Leave fireworks displays to the professionals.
William Degnan said people often forget they are playing with explosives and each July 4th, thousands get injured.
He notes that wooded areas, homes, and even automobiles have become engulfed in flames because of fireworks.
David Parenti, president of the New Hampshire Association of Fire Chiefs, said a substantial portion of structure fire property loss is due to fireworks involving rockets. He said the rockets can land on rooftops and retain enough heat to cause a fire.