New York ( CNN ) -- A veteran police officer died from his injuries Friday after a shooting in Poughkeepsie , New York , according to the Poughkeepsie Police Department . The name of the deceased officer , an 18-year veteran of the department , was not released pending notification of relatives . Another police officer was being treated for a minor injury at Vasser Medical Center , Poughkeepsie Police Chief Ronald Knapp said at a press conference Friday afternoon . `` Today is the worst day our city has seen in perhaps our history , '' Mayor Mike Tkazyik said . Two other people died in the incident . The suspected gunman died from gunshot wounds at St. Francis Hospital in Poughkeepsie , according to hospital spokesman Greg Zurawick . Another victim , an unidentified female , was also shot , according to Knapp . She is believed to be the wife of the suspected gunman . The deceased officer suffered a single gunshot wound to the head , according to Knapp . A confrontation began around 1 p.m. Friday after Poughkeepsie authorities received reports of a shooting in a small parking lot . An officer noticed a man fleeing the scene of the shooting with a child in his arms and tried to confront the man . The child was removed from the man , but another confrontation involving multiple officers ensued , Knapp said . That was when the fatal shootings took place . The child is now in custody of New York state juvenile authorities .
Mayor : `` Today is the worst day our city has seen perhaps in our history '' Officer was an 18-year veteran of Poughkeepsie Police Department . Suspected gunman and an unidentified woman also die in the incident . Police believe the accused gunman and deceased woman were married .