Shots were fired just before a fire and explosion raged through a home in southern New Hampshire Monday afternoon, and state police said the shooting involved a police officer. Multiple agencies responded to a suburban duplex home in Brentwood shortly after 4 p.m. Monday after the shooting was reported.Debra Vasapolli, director of public relations at Exeter Hospital, confirmed that one person was taken to the hospital but said that person was not the victim of a gunshot wound. She declined to provide more details.