A gunman in France has shot dead three police officers who were called to a domestic violence incident, officials said. A woman had fled to the roof of a house in the remote village of Saint-Just early on Wednesday. The gunman killed one officer and wounded another. He then set fire to the house and killed two more officers who arrived. The woman was rescued, the BBC reported. Police are still trying to locate the suspect, 48, who is said to be known to authorities on child custody issues. The mayor of Saint-Just, Francois Chautard, told Le Figaro that the house had burned down and officers were trying to determine whether the suspect was still inside or had escaped. However, a police source told BFMTV it was believed the gunman was on the run, the BBC reported. (IANS)